{"id":7968,"date":"2025-10-10T08:00:07","date_gmt":"2025-10-10T01:00:07","guid":{"rendered":"https:\/\/panindochina.com.vn\/?p=7968"},"modified":"2025-10-31T13:22:02","modified_gmt":"2025-10-31T06:22:02","slug":"cau-tao-va-nguyen-ly-giam-on-cua-nut-bit-tai-chong-on","status":"publish","type":"post","link":"https:\/\/panindochina.com.vn\/en\/cau-tao-va-nguyen-ly-giam-on-cua-nut-bit-tai-chong-on\/","title":{"rendered":"C\u1ea5u T\u1ea1o V\u00e0 Nguy\u00ean L\u00fd Gi\u1ea3m \u1ed2n C\u1ee7a N\u00fat B\u1ecbt Tai Ch\u1ed1ng \u1ed2n"},"content":{"rendered":"

Trong m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c c\u00f3 ti\u1ebfng \u1ed3n cao<\/strong> nh\u01b0 nh\u00e0 m\u00e1y, x\u01b0\u1edfng c\u01a1 kh\u00ed, c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng hay s\u00e2n bay, ti\u1ebfng \u1ed3n k\u00e9o d\u00e0i kh\u00f4ng ch\u1ec9 g\u00e2y kh\u00f3 ch\u1ecbu m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn th\u00ednh l\u1ef1c<\/strong>.
\u0110\u1ec3 b\u1ea3o v\u1ec7 \u0111\u00f4i tai, n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9<\/strong> (earplug) l\u00e0 thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn nh\u01b0ng v\u00f4 c\u00f9ng quan tr\u1ecdng<\/strong>, gi\u00fap gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 ti\u1ebfng \u1ed3n v\u00e0 duy tr\u00ec s\u1ef1 t\u1eadp trung khi l\u00e0m vi\u1ec7c.<\/h3>\n

V\u1eady n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9 \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ra sao \u0111\u1ec3 c\u00f3 th\u1ec3 \u201cch\u1eb7n ti\u1ebfng \u1ed3n\u201d hi\u1ec7u qu\u1ea3?
C\u00f9ng Panindochina<\/strong> t\u00ecm hi\u1ec3u chi ti\u1ebft trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/h3>\n
\n

1. C\u1ea5u t\u1ea1o c\u1ee7a n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9<\/strong><\/h2>\n

T\u00f9y v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng v\u00e0 thi\u1ebft k\u1ebf, n\u00fat b\u1ecbt tai c\u00f3 th\u1ec3 chia th\u00e0nh nhi\u1ec1u lo\u1ea1i (foam, silicone, cao su, c\u00f3 d\u00e2y, kh\u00f4ng d\u00e2y\u2026), nh\u01b0ng nh\u00ecn chung, c\u1ea5u t\u1ea1o c\u1ee7a ch\u00fang g\u1ed3m 3 ph\u1ea7n ch\u00ednh:<\/p>\n

\ud83d\udd39 1.1. Ph\u1ea7n th\u00e2n b\u1ecbt tai (Earplug Body)<\/strong><\/h3>\n

\u0110\u00e2y l\u00e0 b\u1ed9 ph\u1eadn ch\u00ednh c\u00f3 nhi\u1ec7m v\u1ee5 ng\u0103n ch\u1eb7n v\u00e0 h\u1ea5p th\u1ee5 s\u00f3ng \u00e2m<\/strong>.
Ch\u1ea5t li\u1ec7u th\u01b0\u1eddng d\u00f9ng:<\/p>\n

    \n
  • \n

    Foam (b\u1ecdt m\u1ec1m polyurethane ho\u1eb7c PVC):<\/strong> si\u00eau nh\u1eb9, c\u00f3 kh\u1ea3 n\u0103ng gi\u00e3n n\u1edf theo h\u00ecnh d\u1ea1ng \u1ed1ng tai, t\u1ea1o \u0111\u1ed9 k\u00edn ho\u00e0n h\u1ea3o.<\/p>\n<\/li>\n

  • \n

    Silicone:<\/strong> d\u1ebbo, m\u1ec1m, d\u00f9ng \u0111\u01b0\u1ee3c nhi\u1ec1u l\u1ea7n, ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng \u1ea9m ho\u1eb7c b\u1ee5i.<\/p>\n<\/li>\n<\/ul>\n

    Ph\u1ea7n th\u00e2n th\u01b0\u1eddng c\u00f3 thi\u1ebft k\u1ebf h\u00ecnh n\u00f3n, tr\u1ee5 ho\u1eb7c t\u1ea7ng s\u00f3ng<\/strong>, gi\u00fap n\u00fat d\u1ec5 \u0111\u01b0a v\u00e0o tai v\u00e0 \u00f4m kh\u00edt \u1ed1ng tai h\u01a1n.<\/p>\n

    \n

    \ud83d\udd39 1.2. L\u00f5i ho\u1eb7c k\u00eanh d\u1eabn \u00e2m (Filter\/Channel)<\/strong><\/h3>\n

    M\u1ed9t s\u1ed1 lo\u1ea1i n\u00fat b\u1ecbt tai cao c\u1ea5p c\u00f3 b\u1ed9 l\u1ecdc \u00e2m thanh (acoustic filter)<\/strong> n\u1eb1m b\u00ean trong.
    B\u1ed9 l\u1ecdc n\u00e0y cho ph\u00e9p gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh m\u1ea1nh<\/strong> nh\u01b0ng v\u1eabn gi\u1eef l\u1ea1i \u00e2m thanh giao ti\u1ebfp c\u1ea7n thi\u1ebft<\/strong> (nh\u01b0 ti\u1ebfng n\u00f3i, chu\u00f4ng b\u00e1o, c\u00f2i c\u1ea3nh b\u00e1o).<\/p>\n

    V\u00ed d\u1ee5: n\u00fat b\u1ecbt tai ch\u1ed1ng \u1ed3n d\u00f9ng trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t ho\u1eb7c c\u00f4ng tr\u01b0\u1eddng<\/strong> s\u1ebd gi\u1ea3m ti\u1ebfng \u1ed3n c\u01a1 h\u1ecdc nh\u01b0ng v\u1eabn cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng nghe \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u an to\u00e0n.<\/p>\n

    \n

    \ud83d\udd39 1.3. D\u00e2y n\u1ed1i ho\u1eb7c h\u1ed9p \u0111\u1ef1ng (Optional)<\/strong><\/h3>\n

    M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m c\u00f3 d\u00e2y n\u1ed1i gi\u1eefa hai \u0111\u1ea7u n\u00fat<\/strong>, gi\u00fap tr\u00e1nh th\u1ea5t l\u1ea1c khi kh\u00f4ng s\u1eed d\u1ee5ng.
    Ngo\u00e0i ra, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1ec7 sinh, nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng cung c\u1ea5p h\u1ed9p ho\u1eb7c t\u00fai \u0111\u1ef1ng ri\u00eang<\/strong> gi\u00fap ng\u01b0\u1eddi d\u00f9ng b\u1ea3o qu\u1ea3n n\u00fat sau khi s\u1eed d\u1ee5ng.<\/p>\n

    \n

    2. Nguy\u00ean l\u00fd gi\u1ea3m \u1ed3n c\u1ee7a n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9<\/strong><\/h2>\n

    N\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hai c\u01a1 ch\u1ebf ch\u00ednh: h\u1ea5p th\u1ee5 \u00e2m thanh v\u00e0 c\u00e1ch \u00e2m c\u01a1 h\u1ecdc.<\/strong><\/p>\n

    \n

    \ud83d\udd39 2.1. C\u01a1 ch\u1ebf h\u1ea5p th\u1ee5 \u00e2m thanh<\/strong><\/h3>\n

    Khi \u00e2m thanh (d\u1ea1ng s\u00f3ng) truy\u1ec1n qua kh\u00f4ng kh\u00ed v\u00e0 g\u1eb7p l\u1edbp v\u1eadt li\u1ec7u x\u1ed1p ho\u1eb7c \u0111\u00e0n h\u1ed3i<\/strong> c\u1ee7a n\u00fat b\u1ecbt tai, n\u0103ng l\u01b0\u1ee3ng \u00e2m thanh s\u1ebd b\u1ecb chuy\u1ec3n h\u00f3a th\u00e0nh nhi\u1ec7t n\u0103ng<\/strong> nh\u1edd ma s\u00e1t gi\u1eefa s\u00f3ng \u00e2m v\u00e0 c\u1ea5u tr\u00fac v\u1eadt li\u1ec7u<\/strong>.<\/p>\n

    \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh<\/strong> truy\u1ec1n t\u1edbi m\u00e0ng nh\u0129, b\u1ea3o v\u1ec7 tai kh\u1ecfi ti\u1ebfng \u1ed3n v\u01b0\u1ee3t ng\u01b0\u1ee1ng an to\u00e0n (tr\u00ean 85 dB).<\/p>\n

    \n

    \ud83d\udd39 2.2. C\u01a1 ch\u1ebf c\u00e1ch \u00e2m c\u01a1 h\u1ecdc<\/strong><\/h3>\n

    Ph\u1ea7n th\u00e2n n\u00fat b\u1ecbt tai khi gi\u00e3n n\u1edf trong \u1ed1ng tai s\u1ebd t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp \u0111\u1ec7m k\u00edn<\/strong>, ng\u0103n s\u00f3ng \u00e2m l\u1ecdt v\u00e0o b\u00ean trong tai.
    C\u00e0ng k\u00edn kh\u00edt, hi\u1ec7u qu\u1ea3 c\u00e1ch \u00e2m c\u00e0ng cao.<\/p>\n

    M\u1ee9c \u0111\u1ed9 gi\u1ea3m \u1ed3n c\u1ee7a s\u1ea3n ph\u1ea9m th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ch\u1ec9 s\u1ed1:<\/p>\n

      \n
    • \n

      NRR (Noise Reduction Rating)<\/strong> \u2013 theo ti\u00eau chu\u1ea9n M\u1ef9.<\/p>\n<\/li>\n

    • \n

      SNR (Single Number Rating)<\/strong> \u2013 theo ti\u00eau chu\u1ea9n ch\u00e2u \u00c2u.<\/p>\n<\/li>\n<\/ul>\n

      V\u00ed d\u1ee5:<\/p>\n

        \n
      • \n

        N\u00fat b\u1ecbt tai c\u00f3 NRR 33 dB<\/strong> c\u00f3 th\u1ec3 gi\u1ea3m t\u1edbi 33 decibel ti\u1ebfng \u1ed3n<\/strong>.<\/p>\n<\/li>\n

      • \n

        S\u1ea3n ph\u1ea9m \u0111\u1ea1t SNR 37 dB<\/strong> \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ee9c gi\u1ea3m \u1ed3n cao, ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng \u1ed3n l\u1edbn nh\u01b0 nh\u00e0 m\u00e1y c\u01a1 kh\u00ed, khai th\u00e1c m\u1ecf.<\/p>\n<\/li>\n<\/ul>\n

        \n

        3. Ph\u00e2n lo\u1ea1i n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9 ph\u1ed5 bi\u1ebfn<\/strong><\/h2>\n

        \u2705 N\u00fat b\u1ecbt tai foam d\u00f9ng m\u1ed9t l\u1ea7n<\/strong><\/h3>\n
          \n
        • \n

          Ch\u1ea5t li\u1ec7u: B\u1ecdt m\u1ec1m PU ho\u1eb7c PVC<\/p>\n<\/li>\n

        • \n

          \u01afu \u0111i\u1ec3m: Nh\u1eb9, gi\u00e1 r\u1ebb, gi\u1ea3m \u1ed3n cao (NRR 32\u201333 dB)<\/p>\n<\/li>\n

        • \n

          Nh\u01b0\u1ee3c \u0111i\u1ec3m: Ch\u1ec9 s\u1eed d\u1ee5ng 1 l\u1ea7n, kh\u00f4ng th\u00e2n thi\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/p>\n<\/li>\n<\/ul>\n

          \u2705 N\u00fat b\u1ecbt tai silicone t\u00e1i s\u1eed d\u1ee5ng<\/strong><\/h3>\n
            \n
          • \n

            Ch\u1ea5t li\u1ec7u: Silicone m\u1ec1m, d\u1ebbo<\/p>\n<\/li>\n

          • \n

            \u01afu \u0111i\u1ec3m: D\u1ec5 v\u1ec7 sinh, d\u00f9ng \u0111\u01b0\u1ee3c nhi\u1ec1u l\u1ea7n, kh\u00f4ng g\u00e2y \u0111au tai<\/p>\n<\/li>\n

          • \n

            Nh\u01b0\u1ee3c \u0111i\u1ec3m: Gi\u1ea3m \u1ed3n th\u1ea5p h\u01a1n foam m\u1ed9t ch\u00fat (NRR 25\u201328 dB)<\/p>\n<\/li>\n<\/ul>\n

            \u2705 N\u00fat b\u1ecbt tai c\u00f3 b\u1ed9 l\u1ecdc \u00e2m (Filter Earplug)<\/strong><\/h3>\n
              \n
            • \n

              \u1ee8ng d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhu c\u1ea7u giao ti\u1ebfp, bi\u1ec3u di\u1ec5n, c\u00f4ng nghi\u1ec7p nh\u1eb9.<\/p>\n<\/li>\n

            • \n

              Gi\u1eef l\u1ea1i \u00e2m thanh trung th\u1ef1c, ch\u1ec9 lo\u1ea1i b\u1ecf t\u1ea7n s\u1ed1 g\u00e2y h\u1ea1i.<\/p>\n<\/li>\n<\/ul>\n

              \n

              4. C\u00e1ch s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n n\u00fat b\u1ecbt tai hi\u1ec7u qu\u1ea3<\/strong><\/h2>\n

              \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 gi\u1ea3m \u1ed3n t\u1ed1i \u0111a<\/strong>, c\u1ea7n s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch:<\/p>\n

              \ud83d\udd39 C\u00e1ch s\u1eed d\u1ee5ng<\/strong><\/h3>\n
                \n
              1. \n

                R\u1eeda tay s\u1ea1ch<\/strong> tr\u01b0\u1edbc khi ch\u1ea1m v\u00e0o n\u00fat.<\/p>\n<\/li>\n

              2. \n

                Cu\u1ed9n ch\u1eb7t (v\u1edbi lo\u1ea1i foam)<\/strong> r\u1ed3i nh\u1eb9 nh\u00e0ng \u0111\u01b0a v\u00e0o tai, gi\u1eef 10\u201315 gi\u00e2y cho \u0111\u1ebfn khi n\u00fat gi\u00e3n n\u1edf v\u1eeba kh\u00edt.<\/p>\n<\/li>\n

              3. \n

                V\u1edbi lo\u1ea1i silicone<\/strong>, ch\u1ec9 c\u1ea7n \u0111\u1ea9y nh\u1eb9 t\u1eebng t\u1ea7ng s\u00f3ng v\u00e0o \u1ed1ng tai cho \u0111\u1ebfn khi c\u1ea3m th\u1ea5y k\u00edn.<\/p>\n<\/li>\n

              4. \n

                Tr\u00e1nh \u0111\u01b0a v\u00e0o qu\u00e1 s\u00e2u g\u00e2y \u0111au ho\u1eb7c kh\u00f3 ch\u1ecbu.<\/p>\n<\/li>\n<\/ol>\n

                \ud83d\udd39 B\u1ea3o qu\u1ea3n<\/strong><\/h3>\n
                  \n
                • \n

                  Sau khi s\u1eed d\u1ee5ng, lau s\u1ea1ch ho\u1eb7c r\u1eeda b\u1eb1ng x\u00e0 ph\u00f2ng nh\u1eb9.<\/p>\n<\/li>\n

                • \n

                  B\u1ea3o qu\u1ea3n trong h\u1ed9p k\u00edn, kh\u00f4 r\u00e1o, tr\u00e1nh b\u1ee5i b\u1ea9n v\u00e0 \u1ea9m \u01b0\u1edbt<\/strong>.<\/p>\n<\/li>\n

                • \n

                  Thay m\u1edbi ngay n\u1ebfu n\u00fat b\u1ecb b\u1ea9n, r\u00e1ch, bi\u1ebfn d\u1ea1ng ho\u1eb7c m\u1ea5t \u0111\u00e0n h\u1ed3i.<\/p>\n<\/li>\n<\/ul>\n

                  \n

                  N\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9<\/strong> l\u00e0 thi\u1ebft b\u1ecb nh\u1ecf nh\u01b0ng c\u00f3 t\u00e1c d\u1ee5ng l\u1edbn trong b\u1ea3o v\u1ec7 th\u00ednh gi\u00e1c<\/strong> kh\u1ecfi t\u1ed5n th\u01b0\u01a1ng do ti\u1ebfng \u1ed3n c\u00f4ng nghi\u1ec7p.
                  Vi\u1ec7c hi\u1ec3u r\u00f5 c\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd gi\u1ea3m \u1ed3n<\/strong> gi\u00fap ng\u01b0\u1eddi lao \u0111\u1ed9ng ch\u1ecdn \u0111\u00fang s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p<\/strong>, s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

                  Trong m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c c\u00f3 ti\u1ebfng \u1ed3n cao nh\u01b0 nh\u00e0 m\u00e1y, x\u01b0\u1edfng c\u01a1 kh\u00ed, c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng hay s\u00e2n bay, ti\u1ebfng \u1ed3n k\u00e9o d\u00e0i kh\u00f4ng ch\u1ec9 g\u00e2y kh\u00f3 ch\u1ecbu m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn th\u00ednh l\u1ef1c.\u0110\u1ec3 b\u1ea3o v\u1ec7 \u0111\u00f4i tai, n\u00fat b\u1ecbt tai b\u1ea3o h\u1ed9 (earplug) l\u00e0 thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn […]<\/p>\n","protected":false},"author":3,"featured_media":8011,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[188],"tags":[],"class_list":["post-7968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/posts\/7968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/comments?post=7968"}],"version-history":[{"count":1,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/posts\/7968\/revisions"}],"predecessor-version":[{"id":8015,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/posts\/7968\/revisions\/8015"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/media\/8011"}],"wp:attachment":[{"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/media?parent=7968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/categories?post=7968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/panindochina.com.vn\/en\/wp-json\/wp\/v2\/tags?post=7968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}