{"id":17548,"date":"2017-06-16T22:23:56","date_gmt":"2017-06-16T15:23:56","guid":{"rendered":"https:\/\/www.baohoxanh.com\/blog\/?p=17548"},"modified":"2026-09-02T18:38:54","modified_gmt":"2026-09-02T11:38:54","slug":"op-tai-chong-on-chat-luong-tai-dong-nai","status":"publish","type":"post","link":"https:\/\/www.baohoxanh.com\/blog\/op-tai-chong-on-chat-luong-tai-dong-nai\/","title":{"rendered":"\u1ed0p Tai Ch\u1ed1ng \u1ed2n: \u0110o M\u1ee9c \u1ed2n R\u1ed3i M\u1edbi Ch\u1ecdn Thi\u1ebft B\u1ecb"},"content":{"rendered":"<p>Th\u1ee9 quy\u1ebft \u0111\u1ecbnh ng\u01b0\u1eddi th\u1ee3 c\u00f3 gi\u1eef \u0111\u01b0\u1ee3c th\u00ednh l\u1ef1c sau m\u01b0\u1eddi n\u0103m trong x\u01b0\u1edfng kh\u00f4ng ph\u1ea3i l\u00e0 chi\u1ebfc <strong>\u1ed1p tai ch\u1ed1ng \u1ed3n<\/strong> \u0111\u1eaft ti\u1ec1n nh\u1ea5t, m\u00e0 l\u00e0 con s\u1ed1 \u0111o \u0111\u01b0\u1ee3c ngay t\u1ea1i v\u1ecb tr\u00ed ng\u01b0\u1eddi \u0111\u00f3 \u0111\u1ee9ng. B\u00e0i vi\u1ebft \u0111i theo \u0111\u00fang tr\u00ecnh t\u1ef1 \u1ea5y: \u0111o m\u1ee9c \u1ed3n tr\u01b0\u1edbc, \u0111\u1ecdc nh\u00e3n thi\u1ebft b\u1ecb sau, r\u1ed3i m\u1edbi b\u00e0n t\u1edbi chuy\u1ec7n c\u1ea5p ph\u00e1t v\u00e0 gi\u1eef cho l\u1edbp \u0111\u1ec7m c\u00f2n \u00f4m kh\u00edt.<\/p>\n<h2>\u1ed0p Tai Ch\u1ed1ng \u1ed2n D\u00f9ng Cho V\u1ecb Tr\u00ed N\u00e0o Trong Nh\u00e0 X\u01b0\u1edfng<\/h2>\n<p>\u1ed0p tai, c\u00f2n g\u1ecdi l\u00e0 ch\u1ee5p tai, g\u1ed3m hai c\u1ed1c c\u1ee9ng l\u00f3t \u0111\u1ec7m m\u00fat bao tr\u1ecdn v\u00e0nh tai, n\u1ed1i v\u1edbi nhau b\u1eb1ng khung \u0111\u1ed9i \u0111\u1ea7u ho\u1eb7c b\u1eb1ng c\u1ea7n g\u1eafn v\u00e0o m\u0169. Thi\u1ebft b\u1ecb ch\u1eb7n \u0111\u01b0\u1eddng truy\u1ec1n c\u1ee7a s\u00f3ng \u00e2m v\u00e0o \u1ed1ng tai ch\u1ee9 kh\u00f4ng tri\u1ec7t ti\u00eau ti\u1ebfng \u1ed3n. Nh\u00f3m s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo EN 352-1, t\u00e1ch ri\u00eang kh\u1ecfi n\u00fat tai nh\u00e9t trong thu\u1ed9c EN 352-2.<\/p>\n<p>\u1ed0p tai h\u1ee3p v\u1edbi nh\u1eefng v\u1ecb tr\u00ed sau:<\/p>\n<ul>\n<li>C\u00f4ng nh\u00e2n ra v\u00e0o v\u00f9ng \u1ed3n nhi\u1ec1u l\u1ea7n trong ca, th\u00e1o ra \u0111eo v\u00e0o li\u00ean t\u1ee5c &mdash; thao t\u00e1c ch\u1ec9 m\u1ea5t m\u1ed9t gi\u00e2y v\u00e0 kh\u00f4ng c\u1ea7n r\u1eeda tay tr\u01b0\u1edbc.<\/li>\n<li>Tay d\u00ednh d\u1ea7u m\u1ee1, b\u1ee5i xi m\u0103ng ho\u1eb7c h\u00f3a ch\u1ea5t; nh\u00e9t n\u00fat tai l\u00fac \u0111\u00f3 l\u00e0 \u0111\u01b0a ch\u1ea5t b\u1ea9n th\u1eb3ng v\u00e0o \u1ed1ng tai.<\/li>\n<li>T\u1ed5 tr\u01b0\u1edfng c\u1ea7n nh\u00ecn t\u1eeb xa \u0111\u1ec3 bi\u1ebft ai \u0111ang \u0111eo, ai \u0111\u00e3 th\u00e1o ra b\u1ecf t\u00fai.<\/li>\n<li>Ng\u01b0\u1eddi \u0111ang vi\u00eam \u1ed1ng tai ngo\u00e0i, r\u00e1y tai nhi\u1ec1u ho\u1eb7c v\u1eeba can thi\u1ec7p tai, kh\u00f4ng nh\u00e9t \u0111\u01b0\u1ee3c v\u1eadt g\u00ec v\u00e0o b\u00ean trong.<\/li>\n<\/ul>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, \u1ed1p tai \u0111u\u1ed1i s\u1ee9c \u1edf n\u01a1i n\u00f3ng \u1ea9m ph\u1ea3i \u0111eo su\u1ed1t t\u00e1m ti\u1ebfng, \u1edf khoang m\u00e1y ch\u1eadt ph\u1ea3i lu\u1ed3n \u0111\u1ea7u qua khe h\u1eb9p, ho\u1eb7c khi ng\u01b0\u1eddi th\u1ee3 \u0111\u00e3 tr\u00f9m m\u0169 v\u1ea3i v\u00e0 \u0111eo m\u1eb7t n\u1ea1 k\u00edn. Nh\u1eefng v\u1ecb tr\u00ed \u0111\u00f3 n\u00ean t\u00ednh t\u1edbi <a href=\"https:\/\/www.baohoxanh.com\/nut-tai-chong-on\">n\u00fat tai nh\u00e9t trong<\/a>. To\u00e0n b\u1ed9 nh\u00f3m thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 th\u00ednh gi\u00e1c n\u1eb1m \u1edf danh m\u1ee5c <a href=\"https:\/\/www.baohoxanh.com\/bao-ho-tai\">b\u1ea3o h\u1ed9 tai<\/a>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/03\/op-tai-chong-on.jpg\" alt=\"Ch\u1ee5p tai gi\u1ea3m \u1ed3n ki\u1ec3u \u0111ai \u0111\u1ea7u \u0111\u1eb7t tr\u00ean b\u00e0n thao t\u00e1c trong x\u01b0\u1edfng c\u01a1 kh\u00ed\" loading=\"lazy\" width=\"500\" height=\"500\" title=\"\"><\/p>\n<h2>\u0110o M\u1ee9c \u1ed2n Tr\u01b0\u1edbc, Ch\u1ecdn \u1ed0p Tai Sau<\/h2>\n<p>R\u1ea5t nhi\u1ec1u \u0111\u01a1n h\u00e0ng b\u1ecbt tai \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u1ec9 v\u00ec m\u1ed9t c\u00e2u nh\u1eadn x\u00e9t: x\u01b0\u1edfng \u1ed3n l\u1eafm. C\u1ea3m nh\u1eadn kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ed1 li\u1ec7u. Hai lo\u1ea1i thi\u1ebft b\u1ecb cho ra con s\u1ed1 d\u00f9ng \u0111\u01b0\u1ee3c \u0111\u1ec3 ch\u1ecdn h\u00e0ng:<\/p>\n<ul>\n<li><strong>M\u00e1y \u0111o m\u1ee9c \u00e2m c\u1ea7m tay:<\/strong> cho bi\u1ebft m\u1ee9c \u1ed3n t\u1ea1i m\u1ed9t \u0111i\u1ec3m \u1edf m\u1ed9t th\u1eddi \u0111i\u1ec3m. \u0110\u1eb7t micro ngang t\u1ea7m tai ng\u01b0\u1eddi th\u1ee3, c\u00e1ch \u0111\u1ea7u ch\u1eebng m\u1ed9t gang tay; ng\u01b0\u1eddi c\u1ea7m m\u00e1y \u0111\u1ee9ng l\u1ec7ch sang b\u00ean \u0111\u1ec3 th\u00e2n m\u00ecnh kh\u00f4ng ph\u1ea3n x\u1ea1 \u00e2m tr\u1edf l\u1ea1i.<\/li>\n<li><strong>Li\u1ec1u k\u1ebf c\u00e1 nh\u00e2n:<\/strong> k\u1eb9p l\u00ean vai c\u00f4ng nh\u00e2n su\u1ed1t ca v\u00e0 c\u1ed9ng d\u1ed3n to\u00e0n b\u1ed9 th\u1eddi gian ph\u01a1i nhi\u1ec5m. \u0110\u00e2y m\u1edbi l\u00e0 con s\u1ed1 ph\u1ea3n \u00e1nh \u0111\u00fang m\u1ed9t ng\u01b0\u1eddi ph\u1ea3i ch\u1ecbu bao nhi\u00eau, v\u00ec trong m\u1ed9t ca h\u1ecd \u0111i qua nhi\u1ec1u khu v\u1ef1c c\u00f3 m\u1ee9c \u1ed3n kh\u00e1c nhau.<\/li>\n<\/ul>\n<p>Khi \u0111o ph\u1ea3i ghi k\u00e8m b\u1ed1i c\u1ea3nh: m\u00e1y ch\u1ea1y \u0111\u1ee7 t\u1ea3i hay ch\u1ea1y kh\u00f4ng, \u0111ang thay khu\u00f4n hay \u0111ang s\u1ea3n xu\u1ea5t, c\u1eeda x\u01b0\u1edfng \u0111\u00f3ng hay m\u1edf, qu\u1ea1t h\u00fat b\u1eadt hay t\u1eaft. M\u1ed9t m\u00e1y d\u1eadp l\u00fac ch\u1ea1y \u0111\u1ec1u v\u00e0 l\u00fac va khu\u00f4n ch\u00eanh nhau r\u1ea5t xa, v\u00e0 m\u1ee9c \u0111o \u0111\u01b0\u1ee3c l\u00fac \u00eam nh\u1ea5t th\u00ec kh\u00f4ng d\u00f9ng \u0111\u1ec3 ch\u1ecdn thi\u1ebft b\u1ecb.<\/p>\n<p>Ng\u01b0\u1ee1ng b\u1eaft \u0111\u1ea7u ph\u1ea3i h\u00e0nh \u0111\u1ed9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t quanh 85 dB(A) t\u00ednh trung b\u00ecnh theo t\u00e1m gi\u1edd; c\u00f2n c\u00e1ch gh\u00e9p m\u1ee9c \u1ed3n \u0111o \u0111\u01b0\u1ee3c v\u1edbi d\u1ea3i SNR c\u1ee7a thi\u1ebft b\u1ecb \u0111eo n\u1eb1m trong <a href=\"https:\/\/www.hse.gov.uk\/noise\/hearingprotection.htm\" target=\"_blank\" rel=\"noopener nofollow\">h\u01b0\u1edbng d\u1eabn ch\u1ecdn v\u00e0 d\u00f9ng ph\u01b0\u01a1ng ti\u1ec7n b\u1ea3o v\u1ec7 th\u00ednh l\u1ef1c c\u1ee7a HSE<\/a>, k\u00e8m c\u1ea3nh b\u00e1o kh\u00f4ng \u00e9p m\u1ee9c t\u1ea1i tai xu\u1ed1ng d\u01b0\u1edbi 70 dB v\u00ec g\u00e2y c\u00f4 l\u1eadp. V\u01b0\u1ee3t ng\u01b0\u1ee1ng \u0111\u00f3 th\u00ec th\u1ee9 t\u1ef1 x\u1eed l\u00fd v\u1eabn l\u00e0 h\u1ea1 \u1ed3n t\u1ea1i ngu\u1ed3n, che ch\u1eafn \u0111\u01b0\u1eddng truy\u1ec1n, r\u1ed3i m\u1edbi t\u1edbi thi\u1ebft b\u1ecb \u0111eo l\u00ean ng\u01b0\u1eddi. \u1ed0p tai l\u00e0 l\u1edbp cu\u1ed1i c\u00f9ng, kh\u00f4ng ph\u1ea3i l\u1edbp \u0111\u1ea7u ti\u00ean.<\/p>\n<h2>Hi\u1ec3u B\u1ed1n C\u00e1ch C\u00f4ng B\u1ed1 \u0110\u1ed9 Gi\u1ea3m \u1ed2n Tr\u00ean Nh\u00e3n<\/h2>\n<p>C\u00f9ng m\u1ed9t chi\u1ebfc \u1ed1p tai c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1eb1ng b\u1ed1n b\u1ed9 s\u1ed1 kh\u00e1c nhau, t\u00f9y nh\u00e0 s\u1ea3n xu\u1ea5t in g\u00ec l\u00ean h\u1ed9p v\u00e0 t\u00e0i li\u1ec7u k\u00e8m theo:<\/p>\n<ul>\n<li><strong>SNR:<\/strong> m\u1ed9t con s\u1ed1 duy nh\u1ea5t theo h\u1ec7 ch\u00e2u \u00c2u. D\u1ec5 so s\u00e1nh nhanh gi\u1eefa hai s\u1ea3n ph\u1ea9m, nh\u01b0ng n\u00f3 gi\u1ea3 \u0111\u1ecbnh m\u1ed9t ph\u1ed5 ti\u1ebfng \u1ed3n trung b\u00ecnh ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u1ed5 c\u1ee7a x\u01b0\u1edfng b\u1ea1n.<\/li>\n<li><strong>H, M, L:<\/strong> ba con s\u1ed1 cho ba d\u1ea3i t\u1ea7n. H l\u00e0 m\u1ee9c gi\u1ea3m trung b\u00ecnh \u1edf d\u1ea3i 2&ndash;8 kHz, M \u1edf d\u1ea3i 0,5&ndash;2 kHz, L \u1edf d\u01b0\u1edbi 0,5 kHz. B\u1ed9 s\u1ed1 n\u00e0y h\u1eefu \u00edch khi \u0111\u00e3 bi\u1ebft ti\u1ebfng \u1ed3n c\u1ee7a m\u00ecnh thi\u00ean v\u1ec1 \u0111\u00e2u: m\u00e1y n\u00e9n kh\u00ed, qu\u1ea1t h\u00fat, \u0111\u1ed9ng c\u01a1 diesel n\u1eb7ng v\u1ec1 t\u1ea7n th\u1ea5p n\u00ean ph\u1ea3i nh\u00ecn L; ti\u1ebfng kh\u00ed n\u00e9n x\u00ec, m\u00e0i, c\u1eaft kim lo\u1ea1i n\u1eb7ng v\u1ec1 t\u1ea7n cao n\u00ean nh\u00ecn H.<\/li>\n<li><strong>B\u1ea3ng d\u1ea3i octave:<\/strong> m\u1ee9c gi\u1ea3m t\u1ea1i 125, 250, 500, 1000, 2000, 4000 v\u00e0 8000 Hz k\u00e8m \u0111\u1ed9 l\u1ec7ch chu\u1ea9n t\u1eebng d\u1ea3i. Ch\u00ednh x\u00e1c nh\u1ea5t, d\u00f9ng khi \u0111\u00e3 c\u00f3 ph\u1ed5 ti\u1ebfng \u1ed3n \u0111o b\u1eb1ng m\u00e1y ph\u00e2n t\u00edch d\u1ea3i octave.<\/li>\n<li><strong>NRR:<\/strong> c\u00e1ch c\u00f4ng b\u1ed1 theo h\u1ec7 M\u1ef9, hay g\u1eb7p tr\u00ean h\u00e0ng nh\u1eadp t\u1eeb B\u1eafc M\u1ef9. Kh\u00f4ng quy \u0111\u1ed5i th\u1eb3ng sang SNR b\u1eb1ng m\u1ed9t ph\u00e9p c\u1ed9ng tr\u1eeb c\u1ed1 \u0111\u1ecbnh.<\/li>\n<\/ul>\n<p>\u0110i\u1ec3m \u00edt ng\u01b0\u1eddi \u0111\u1ec3 \u00fd: m\u1ecdi con s\u1ed1 tr\u00ean \u0111\u1ec1u \u0111\u1ebfn t\u1eeb ph\u00e9p th\u1eed ng\u01b0\u1ee1ng nghe th\u1ef1c trong ph\u00f2ng c\u00e2m, tr\u00ean m\u1ed9t nh\u00f3m m\u01b0\u1eddi s\u00e1u ng\u01b0\u1eddi \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n \u0111eo \u0111\u00fang k\u1ef9 thu\u1eadt. \u0110\u00f3 l\u00e0 l\u00fd do \u0111o l\u1ea1i c\u00f9ng m\u1ed9t m\u1eabu v\u1eabn x\u00ea d\u1ecbch v\u00e0i decibel, v\u00e0 c\u0169ng l\u00e0 l\u00fd do hi\u1ec7u qu\u1ea3 ngo\u00e0i x\u01b0\u1edfng lu\u00f4n th\u1ea5p h\u01a1n con s\u1ed1 in tr\u00ean h\u1ed9p.<\/p>\n<p>\u0110\u1ed9 l\u1ec7ch chu\u1ea9n in k\u00e8m \u0111\u00e1ng \u0111\u1ecdc kh\u00f4ng k\u00e9m con s\u1ed1 ch\u00ednh. Hai m\u1eabu c\u00f9ng ghi SNR 30 nh\u01b0ng m\u1eabu c\u00f3 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n nh\u1ecf h\u01a1n s\u1ebd cho k\u1ebft qu\u1ea3 \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n gi\u1eefa nh\u1eefng ng\u01b0\u1eddi \u0111eo kh\u00e1c nhau &mdash; \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng khi c\u1ea5p ph\u00e1t cho c\u1ea3 m\u1ed9t t\u1ed5 s\u1ea3n xu\u1ea5t thay v\u00ec cho m\u1ed9t ng\u01b0\u1eddi.<\/p>\n<h2>\u1ed0p Tai \u0110ai \u0110\u1ea7u V\u00e0 \u1ed0p Tai G\u1eafn R\u00e3nh M\u0169<\/h2>\n<p>Hai ki\u1ec3u l\u1eafp c\u00f9ng b\u1ea3o v\u1ec7 m\u1ed9t th\u1ee9 nh\u01b0ng ph\u1ee5c v\u1ee5 hai ki\u1ec3u c\u00f4ng vi\u1ec7c kh\u00e1c nhau.<\/p>\n<p><strong>Ki\u1ec3u \u0111ai \u0111\u1ea7u<\/strong> c\u00f3 khung nh\u1ef1a ho\u1eb7c th\u00e9p b\u1ecdc \u0111\u1ec7m v\u1eaft qua \u0111\u1ec9nh \u0111\u1ea7u; v\u1edbi c\u00f4ng vi\u1ec7c g\u1ea7n ph\u1ea7n mang \u0111i\u1ec7n th\u00ec ch\u1ec9 ch\u1ecdn khung nh\u1ef1a, v\u00ec khung th\u00e9p d\u1eabn \u0111i\u1ec7n. L\u1ef1c \u00e9p ph\u00e2n b\u1ed1 \u0111\u1ec1u, \u0111eo nhanh, th\u00e1o nhanh. M\u1ed9t s\u1ed1 m\u1eabu cho ph\u00e9p xoay khung ra sau g\u00e1y ho\u1eb7c xu\u1ed1ng d\u01b0\u1edbi c\u1eb1m, h\u1ee3p v\u1edbi ng\u01b0\u1eddi \u0111\u1ed9i m\u0169 l\u01b0\u1ee1i trai ho\u1eb7c \u0111eo m\u1eb7t n\u1ea1 h\u00e0n l\u1eadt.<\/p>\n<p><strong>Ki\u1ec3u g\u1eafn m\u0169<\/strong> b\u1ecf h\u1eb3n khung \u0111\u1ed9i \u0111\u1ea7u, thay b\u1eb1ng hai c\u1ea7n c\u1eafm v\u00e0o r\u00e3nh b\u00ean h\u00f4ng m\u0169 b\u1ea3o h\u1ed9. Nh\u00f3m n\u00e0y th\u1eed nghi\u1ec7m theo EN 352-3, v\u00e0 \u0111i\u1ec3m m\u1ea5u ch\u1ed1t l\u00e0 ch\u1ee9ng nh\u1eadn g\u1eafn li\u1ec1n v\u1edbi m\u1ed9t danh s\u00e1ch m\u0169 c\u1ee5 th\u1ec3: l\u1eafp c\u00f9ng chi\u1ebfc \u1ed1p tai \u1ea5y l\u00ean m\u1ed9t m\u0169 kh\u00e1c ki\u1ec3u r\u00e3nh th\u00ec s\u1ed1 li\u1ec7u gi\u1ea3m \u1ed3n c\u00f4ng b\u1ed1 kh\u00f4ng c\u00f2n hi\u1ec7u l\u1ef1c. \u0110\u01a1n \u0111\u1eb7t \u1ed1p tai ki\u1ec3u n\u00e0y ph\u1ea3i k\u00e8m t\u00ean m\u0169 \u0111ang d\u00f9ng; c\u00e1c ki\u1ec3u v\u1ecf v\u00e0 r\u00e3nh g\u1eafn ph\u1ee5 ki\u1ec7n xem tr\u01b0\u1edbc \u1edf danh m\u1ee5c <a href=\"https:\/\/www.baohoxanh.com\/mu-bao-ho\">m\u0169 b\u1ea3o h\u1ed9 lao \u0111\u1ed9ng<\/a>.<\/p>\n<p>V\u00ec sao v\u1ecb tr\u00ed \u0111\u1ed9i m\u0169 c\u1ea3 ca n\u00ean chuy\u1ec3n sang ki\u1ec3u g\u1eafn m\u0169: v\u00e0nh m\u0169 v\u00e0 quai c\u1eb1m \u0111\u1ea9y khung \u0111ai \u0111\u1ea7u l\u1ec7ch kh\u1ecfi tr\u1ee5c, m\u00e9p \u0111\u1ec7m b\u1ecb nh\u1ea5c l\u00ean v\u00e0i milimet \u1edf ph\u00eda sau tai, v\u00e0 khe h\u1edf \u0111\u00f3 l\u1ea5y \u0111i ph\u1ea7n l\u1edbn hi\u1ec7u qu\u1ea3. \u0110\u1ed5i l\u1ea1i, ki\u1ec3u g\u1eafn m\u0169 th\u01b0\u1eddng c\u00f3 l\u1ef1c \u00e9p l\u00ean v\u00e0nh tai nh\u1ecf h\u01a1n n\u00ean ch\u1ec9 s\u1ed1 gi\u1ea3m \u1ed3n c\u1ee7a c\u00f9ng m\u1ed9t d\u00f2ng s\u1ea3n ph\u1ea9m th\u01b0\u1eddng th\u1ea5p h\u01a1n ki\u1ec3u \u0111ai \u0111\u1ea7u m\u1ed9t ch\u00fat, c\u1ea7n \u0111\u1ed1i chi\u1ebfu l\u1ea1i v\u1edbi m\u1ee9c \u1ed3n \u0111\u00e3 \u0111o \u0111\u01b0\u1ee3c.<\/p>\n<p>V\u1ecb tr\u00ed ngh\u1ec9 c\u1ee7a c\u1ed1c c\u0169ng ph\u1ea3i d\u1ea1y cho ng\u01b0\u1eddi \u0111eo: l\u1eadt c\u1ed1c l\u00ean tr\u00ean v\u00e0nh m\u0169, kh\u00f4ng th\u00e1o h\u1eb3n v\u1ee9t xu\u1ed1ng s\u00e0n, kh\u00f4ng treo l\u1ee7ng l\u1eb3ng \u1edf c\u1ed5 \u0111\u1ec3 m\u1eb7t \u0111\u1ec7m d\u00ednh d\u1ea7u v\u00e0 m\u1ea1t kim lo\u1ea1i.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/03\/op-tai-chong-on-EM-105-.jpg\" alt=\"\u1ed0p tai Proguard EM 105 v\u1ecf \u0111en, khung \u0111\u1ed9i \u0111\u1ea7u \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c hai b\u00ean\" loading=\"lazy\" width=\"500\" height=\"500\" title=\"\"><\/p>\n<h2>Ki\u1ec3m Tra \u0110\u1ed9 \u00d4m Kh\u00edt Ngay T\u1ea1i X\u01b0\u1edfng<\/h2>\n<p>Chi\u1ebfc \u1ed1p tai ch\u1ec9 l\u00e0m vi\u1ec7c khi v\u00e0nh \u0111\u1ec7m ti\u1ebfp x\u00fac li\u00ean t\u1ee5c v\u1edbi da quanh v\u00e0nh tai. B\u1ed1n th\u1ee9 hay chen v\u00e0o \u0111\u01b0\u1eddng ti\u1ebfp x\u00fac \u0111\u00f3:<\/p>\n<ul>\n<li>G\u1ecdng k\u00ednh b\u1ea3o h\u1ed9 b\u1ea3n to. \u0110\u1ed5i sang g\u1ecdng d\u1eb9t ho\u1eb7c ki\u1ec3u d\u00e2y \u0111eo l\u00e0 l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c v\u00e0i decibel.<\/li>\n<li>D\u00e2y quai kh\u1ea9u trang v\u1eaft ngang v\u00f9ng \u0111\u1ec7m ph\u00eda tr\u01b0\u1edbc tai.<\/li>\n<li>T\u00f3c d\u00e0y, kh\u0103n tr\u00f9m \u0111\u1ea7u, c\u1ed5 \u00e1o d\u1ef1ng \u0111\u1ee9ng.<\/li>\n<li>Khuy\u00ean tai b\u1ea3n l\u1edbn v\u00e0 g\u1ecdng k\u00ednh l\u00e3o g\u1ea5p treo tr\u00ean v\u00e0nh tai.<\/li>\n<\/ul>\n<p>C\u00e1ch ki\u1ec3m nhanh m\u00e0 t\u1ed5 tr\u01b0\u1edfng l\u00e0m \u0111\u01b0\u1ee3c ngay t\u1ea1i chuy\u1ec1n: \u0111\u1ee9ng ph\u00eda sau ng\u01b0\u1eddi \u0111eo, nh\u00ecn ngang qua v\u00e0nh \u0111\u1ec7m xem c\u00f3 khe s\u00e1ng n\u00e0o l\u1ecdt qua kh\u00f4ng; \u0111\u01b0a ng\u00f3n tay l\u01b0\u1edbt quanh m\u00e9p \u0111\u1ec7m, ch\u1ed7 n\u00e0o ng\u00f3n tay chui v\u00e0o d\u1ec5 l\u00e0 ch\u1ed7 \u0111\u00f3 h\u1edf. Sau \u0111\u00f3 y\u00eau c\u1ea7u ng\u01b0\u1eddi \u0111eo n\u00f3i v\u00e0i c\u00e2u &mdash; khi \u0111\u1ed9 k\u00edn \u0111\u1ea1t, h\u1ecd nghe gi\u1ecdng ch\u00ednh m\u00ecnh vang v\u00e0 tr\u1ea7m h\u01a1n b\u00ecnh th\u01b0\u1eddng; c\u1ea3m gi\u00e1c \u1ea5y bi\u1ebfn m\u1ea5t ngh\u0129a l\u00e0 \u0111\u1ec7m \u0111ang kh\u00f4ng \u0103n kh\u00edt.<\/p>\n<p>Nh\u00e0 m\u00e1y c\u00f3 ch\u01b0\u01a1ng tr\u00ecnh b\u1ea3o v\u1ec7 th\u00ednh l\u1ef1c b\u00e0i b\u1ea3n th\u00ec b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 \u0111o \u0111\u1ed9 kh\u00edt cho t\u1eebng ng\u01b0\u1eddi b\u1eb1ng thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng, cho ra m\u1ee9c gi\u1ea3m \u1ed3n th\u1ef1c t\u1ebf c\u1ee7a ng\u01b0\u1eddi \u0111\u00f3 thay v\u00ec con s\u1ed1 chung in tr\u00ean h\u1ed9p. K\u1ebft qu\u1ea3 \u0111o c\u00f2n d\u00f9ng \u0111\u1ec3 d\u1ea1y l\u1ea1i thao t\u00e1c \u0111eo cho nh\u1eefng ai li\u00ean t\u1ee5c \u0111\u1ea1t th\u1ea5p, thay v\u00ec \u0111\u1ed5 l\u1ed7i cho s\u1ea3n ph\u1ea9m.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/03\/op-tai-chong-on-pc-03em.jpg\" alt=\"C\u1eadn c\u1ea3nh \u0111\u1ec7m m\u00fat v\u00e0 l\u00f2ng c\u1ed1c nh\u1ef1a c\u1ee7a ch\u1ee5p tai PC 03EM\" loading=\"lazy\" width=\"500\" height=\"500\" title=\"\"><\/p>\n<h2>V\u1ec7 Sinh V\u00e0 Qu\u1ea3n L\u00fd \u1ed0p Tai C\u1ea5p Ph\u00e1t Nhi\u1ec1u Ca<\/h2>\n<p>\u1ed0p tai h\u1ecfng r\u1ea5t l\u1eb7ng l\u1ebd. Kh\u00f4ng ai b\u00e1o h\u1ecfng v\u00ec n\u00f3 v\u1eabn \u0111\u1ed9i l\u00ean \u0111\u1ea7u \u0111\u01b0\u1ee3c, ch\u1ec9 c\u00f3 l\u1edbp m\u00fat b\u00ean trong \u0111\u00e3 chai v\u00e0 khung \u0111\u00e3 m\u1ea5t l\u1ef1c \u00e9p. V\u00ec th\u1ebf ph\u1ea7n qu\u1ea3n l\u00fd quan tr\u1ecdng ngang ph\u1ea7n ch\u1ecdn mua.<\/p>\n<ul>\n<li><strong>M\u1ed7i ng\u01b0\u1eddi m\u1ed9t b\u1ed9, c\u00f3 ghi t\u00ean.<\/strong> Vi\u1ebft t\u00ean b\u1eb1ng b\u00fat d\u1ea7u l\u00ean m\u1eb7t ngo\u00e0i c\u1ed1c, kh\u00f4ng d\u00e1n nh\u00e3n gi\u1ea5y l\u00ean v\u00e0nh \u0111\u1ec7m.<\/li>\n<li><strong>D\u00f9ng chung theo ca th\u00ec ph\u1ea3i c\u00f3 b\u1ecdc \u0111\u1ec7m d\u00f9ng m\u1ed9t l\u1ea7n.<\/strong> L\u1edbp b\u1ecdc m\u1ecfng l\u00e0m h\u1ee5t \u0111i ch\u00fat hi\u1ec7u qu\u1ea3 nh\u01b0ng \u0111\u1ed5i l\u1ea1i tr\u00e1nh l\u00e2y n\u1ea5m da v\u00e0 vi\u00eam nang l\u00f4ng v\u00f9ng quanh tai.<\/li>\n<li><strong>T\u1ee7 treo tho\u00e1ng \u0111\u1eb7t \u1edf c\u1eeda x\u01b0\u1edfng.<\/strong> Treo theo m\u00f3c ri\u00eang t\u1eebng ng\u01b0\u1eddi, kh\u00f4ng nh\u00e9t chung v\u00e0o th\u00f9ng nh\u1ef1a c\u00f9ng g\u0103ng tay b\u1ea9n.<\/li>\n<li><strong>Ki\u1ec3m theo qu\u00fd.<\/strong> B\u00f3p nh\u1eb9 khung xem c\u00f2n b\u1eadt l\u1ea1i d\u1ee9t kho\u00e1t kh\u00f4ng; \u1ea5n ng\u00f3n tay v\u00e0o \u0111\u1ec7m xem m\u00fat c\u00f3 ph\u1ed3ng tr\u1edf l\u1ea1i kh\u00f4ng; soi l\u00f2ng c\u1ed1c t\u00ecm v\u1ebft n\u1ee9t ch\u00e2n t\u00f3c quanh ch\u00e2n v\u00edt.<\/li>\n<\/ul>\n<p>B\u1ed9 \u0111\u1ec7m l\u00e0 ph\u1ea7n ti\u00eau hao, \u0111\u1eb7t mua r\u1eddi theo \u0111\u00fang model ch\u1ee9 kh\u00f4ng thay c\u1ea3 chi\u1ebfc. Khi khung \u0111\u00e3 m\u1ea5t l\u1ef1c \u00e9p ho\u1eb7c c\u1ed1c \u0111\u00e3 n\u1ee9t th\u00ec b\u1ecf nguy\u00ean b\u1ed9, kh\u00f4ng ch\u1eafp \u0111\u1ec7m m\u1edbi v\u00e0o khung c\u0169 \u0111\u1ec3 d\u00f9ng n\u1ed1t. C\u00e1c m\u1eabu c\u00f3 s\u1eb5n k\u00e8m b\u1ed9 \u0111\u1ec7m thay th\u1ebf n\u1eb1m \u1edf danh m\u1ee5c <a href=\"https:\/\/www.baohoxanh.com\/bit-tai-chong-on\">ch\u1ee5p tai gi\u1ea3m \u1ed3n<\/a>.<\/p>\n<p>Cu\u1ed1i c\u00f9ng l\u00e0 chuy\u1ec7n tu\u00e2n th\u1ee7. Ng\u01b0\u1eddi th\u1ee3 t\u1ef1 th\u00e1o \u1ed1p tai ra v\u00ec ba l\u00fd do l\u1eb7p \u0111i l\u1eb7p l\u1ea1i: \u0111au v\u00e0nh tai sau ch\u1eebng hai gi\u1edd, n\u00f3ng b\u00ed ph\u1ea7n da n\u1eb1m d\u01b0\u1edbi \u0111\u1ec7m, v\u00e0 v\u01b0\u1edbng v\u00edu m\u1ed7i l\u1ea7n c\u00fai ng\u01b0\u1eddi lu\u1ed3n v\u00e0o g\u1ea7m m\u00e1y. C\u1ea3 ba \u0111\u1ec1u x\u1eed l\u00fd \u0111\u01b0\u1ee3c b\u1eb1ng l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ch\u1ee9 kh\u00f4ng b\u1eb1ng l\u1eddi nh\u1eafc &mdash; \u0111\u1ed5i sang \u0111\u1ec7m m\u1ec1m b\u1ea3n r\u1ed9ng, \u0111\u1ed5i sang m\u1eabu c\u00f3 c\u1ea7u khung tho\u00e1ng, ho\u1eb7c chuy\u1ec3n h\u1eb3n nh\u00f3m th\u1ee3 b\u1ea3o tr\u00ec sang n\u00fat tai. Khi t\u1ec9 l\u1ec7 \u0111eo \u1edf m\u1ed9t chuy\u1ec1n t\u1ee5t xu\u1ed1ng, th\u1ee9 c\u1ea7n xem l\u1ea1i tr\u01b0\u1edbc ti\u00ean l\u00e0 m\u1eabu \u0111ang c\u1ea5p ph\u00e1t, kh\u00f4ng ph\u1ea3i \u00fd th\u1ee9c c\u1ee7a ng\u01b0\u1eddi \u0111eo.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/03\/op-tai-chong-on-bk816-21y-bvt0006_1.jpg\" alt=\"Ch\u1ee5p tai BK816 g\u1ecdng v\u00e0ng v\u1edbi hai c\u1ed1c xoay \u0111\u01b0\u1ee3c theo chi\u1ec1u cao tai\" loading=\"lazy\" width=\"500\" height=\"500\" title=\"\"><\/p>\n<h2>G\u1ecdi T\u00ean \u0110\u00fang Thi\u1ebft B\u1ecb V\u00e0 Th\u1eddi \u0110i\u1ec3m Thay \u0110\u1ec7m<\/h2>\n<h3>\u1ed0p Tai V\u00e0 B\u1ecbt Tai C\u00f3 Ph\u1ea3i C\u00f9ng M\u1ed9t Th\u1ee9 Kh\u00f4ng?<\/h3>\n<p>C\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb, kh\u00e1c c\u00e1ch g\u1ecdi theo v\u00f9ng v\u00e0 theo ngh\u1ec1. \u1ed0p tai, ch\u1ee5p tai, b\u1ecbt tai d\u1ea1ng ch\u1ee5p \u0111\u1ec1u ch\u1ec9 lo\u1ea1i c\u00f3 hai c\u1ed1c v\u00e0 khung \u0111\u1ed9i \u0111\u1ea7u. Khi \u0111\u1eb7t h\u00e0ng n\u00ean k\u00e8m model v\u00e0 ki\u1ec3u l\u1eafp \u0111\u1ec3 tr\u00e1nh nh\u1eadn nh\u1ea7m sang n\u00fat tai nh\u00e9t trong.<\/p>\n<h3>Tai Nghe Nh\u1ea1c C\u00f3 Thay \u0110\u01b0\u1ee3c \u1ed0p Tai Kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. Tai nghe nh\u1ea1c th\u00f4ng th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo EN 352 v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 li\u1ec7u gi\u1ea3m \u1ed3n \u0111\u1ec3 \u0111\u1ed1i chi\u1ebfu. Lo\u1ea1i ch\u1ee5p tai t\u00edch h\u1ee3p radio ho\u1eb7c b\u1ed9 \u0111\u00e0m l\u00e0 d\u00f2ng ri\u00eang, ph\u1ea3i xem c\u1ea3 ch\u1ec9 s\u1ed1 gi\u1ea3m \u1ed3n l\u1eabn gi\u1edbi h\u1ea1n \u00e2m l\u01b0\u1ee3ng ph\u00e1t ra b\u00ean trong c\u1ed1c.<\/p>\n<h3>Bao L\u00e2u Th\u00ec Ph\u1ea3i Thay \u0110\u1ec7m Tai?<\/h3>\n<p>Kh\u00f4ng c\u00f3 m\u1ed1c c\u1ed1 \u0111\u1ecbnh v\u00ec c\u00f2n ph\u1ee5 thu\u1ed9c m\u1ed3 h\u00f4i, nhi\u1ec7t \u0111\u1ed9 v\u00e0 s\u1ed1 gi\u1edd \u0111eo m\u1ed7i ng\u00e0y. C\u0103n c\u1ee9 n\u00ean d\u00f9ng l\u00e0 tr\u1ea1ng th\u00e1i v\u1eadt l\u00fd: m\u00fat kh\u00f4ng ph\u1ed3ng tr\u1edf l\u1ea1i sau khi \u1ea5n, b\u1ec1 m\u1eb7t n\u1ee9t ch\u00e2n chim, ho\u1eb7c ng\u01b0\u1eddi \u0111eo b\u1eaft \u0111\u1ea7u ph\u1ea3i l\u1ea5y tay \u00e9p c\u1ed1c m\u1edbi th\u1ea5y \u00eam.<\/p>\n<h3>\u0110\u1ed9i M\u0169 C\u1ee9ng R\u1ed3i C\u00f3 C\u1ea7n \u0110\u1ed5i Ki\u1ec3u \u1ed0p Tai Kh\u00f4ng?<\/h3>\n<p>N\u1ebfu c\u00f4ng vi\u1ec7c b\u1eaft bu\u1ed9c \u0111\u1ed9i m\u0169 su\u1ed1t ca th\u00ec n\u00ean chuy\u1ec3n sang ki\u1ec3u g\u1eafn r\u00e3nh m\u0169, ch\u1ecdn \u0111\u00fang theo danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. Gi\u1eef nguy\u00ean ki\u1ec3u \u0111ai \u0111\u1ea7u ch\u1ec9 h\u1ee3p l\u00fd khi m\u0169 ch\u1ec9 \u0111\u1ed9i l\u00fac ra c\u00f4ng tr\u01b0\u1eddng v\u00e0 th\u00e1o ra khi v\u00e0o x\u01b0\u1edfng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110o m\u1ee9c \u1ed3n t\u1ea1i v\u1ecb tr\u00ed ng\u01b0\u1eddi th\u1ee3 \u0111\u1ee9ng tr\u01b0\u1edbc, r\u1ed3i m\u1edbi \u0111\u1ecdc SNR hay H\/M\/L tr\u00ean nh\u00e3n v\u00e0 ki\u1ec3m \u0111\u1ed9 \u00f4m kh\u00edt c\u1ee7a v\u00e0nh \u0111\u1ec7m ngay t\u1ea1i chuy\u1ec1n.<\/p>\n","protected":false},"author":969,"featured_media":37572,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6934],"tags":[4251,119,232],"class_list":["post-17548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xoa-gsc","tag-bit-tai","tag-bit-tai-chong-on","tag-op-tai-chong-on"],"_links":{"self":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/users\/969"}],"replies":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/comments?post=17548"}],"version-history":[{"count":17,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17548\/revisions"}],"predecessor-version":[{"id":93093,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17548\/revisions\/93093"}],"wp:attachment":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media?parent=17548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/categories?post=17548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/tags?post=17548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}