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PM2.5 Filters (2pk) 5-Layer Disposable 2.5 Micron - Active Carbon Filter - BACK IN STOCK

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0.01 LBS
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Product Description

PM2.5 Filters (Packaged with 2pcs) (FULLY BACK IN STOCK 04.30.2021)


Material Specifications:

  • 1x activated carbon
  • 2x non-woven clothes
  • 2x meltblown papers.

Filter size: Adults 4.5" x 3.2"

The 2.5 in PM2.5 refers to the diameter size of particles in micrometers. The symbol for micrometers also known as microns is µm and is also described in decimals as 0.001 millimeters. (As reference the diameter of the human hair is 0.1 millimetres)

Size comparison diagram shown below from the Environmental Protection Agency


Inhaling 2.5mircons particles transferred and carried through air will aggravate breathing airways, Particles this size can penetrate deep in to the lung and into the blood stream from that point.

It is recommended to change your filter twice a week if filter is used daily.


The use of a PM2.5 filters without a fully sealed holding apparatus will not render the fill effectiveness of this filter.

Product Reviews

Write your own product review

  1. Not Used Yet, but are exactly what I ordered 4 Star Review

    Posted by on 4th Oct 2020

    These filters are exactly what I need and have not yet used them, but will do so as soon as my cloth masks arrive.

    Simple ordering process and a quick delivery.

  2. Smaller than I expected 4 Star Review

    Posted by on 4th Sep 2020

    The filters are smaller than the mask cavity but otherwise good quality.

    Service was excellent. Good company to work with.

  3. Great Product - Great Service! 5 Star Review

    Posted by on 25th Aug 2020

    Fast and efficient service as always! Great product!

  4. Quality PM 2.5 filters 5 Star Review

    Posted by on 11th Jul 2020

    These filters are a good size for the masks I make. I am happy with the quality and how quickly they arrived.

  5. just reveived great delivery time 4 Star Review

    Posted by on 27th May 2020

    Received but haven’t used yet trust your website. If our frontline workers used these that’s testament to me. I emailed all my friends where I get my masks WATUKO and Filters from TACTICAL INNOVATIONS.

    Thank You
    Robert O’Neil

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