RAT BOI

FILTER REFILL

$5.50
Select Pack:

Our breathable nanotechnology fabric filter has more than a 90% filtration efficiency. It has been tested with NaCl aerosol at inhalation flow rates of 95 liters/min and can block particles as small as 0.6 micrometers. Our filters help keep your masks more effective at filtering particles than the fabric alone.

PRODUCT DETAILS

Size: 4” x 5”

Filters are designed to be used with RAT BOI cloth mask alternatives but can also be used with your own masks you have created or purchased elsewhere to improve efficacy.

BEST USE

Insert filter into your RAT BOI or other cloth alternative mask. Note: filters can be cut with scissors if needed to fit other masks.

Make sure your filter is covering your nose and mouth portion of the mask.

All filters are designed to be disposable and should be refilled or sterilized using professional UV light treatment after each 10 hours of wear. This 10 hours can be broken up over several essential outings, but remember, like your standard N95 mask, filtration efficacy degrades over time.

Filters can not be laundered and should always be removed before laundering your mask.

RETURNS

All filters are considered personal items. For sanitation reasons, we are not accepting returns or refunds on any of our mask products.

LAB TESTING:


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These filters are NOT a direct substitute for N95, surgical, or procedural masks and are NOT FDA approved. 

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