F3 Mask Filter - 3/Pack

  • F3 Mask Filter - 3/Pack

F3 Mask Filter - 3/Pack

168 reviews


The F3 is our premium RZ® filter, and combines the best technologies from our F1 and F2 filters. The first layer is a High-Flow Electrostatic Filter, trapping particulate down to .1 micron in size (with 40% better breathability than our standard F1 filter). The second layer is an Active Carbon Element, which helps to reduce harmful fumes and odors. The best part? All RZ® filters have been laboratory tested to be up to 99.9% effective!

+ Best-in-class filtration with 360-degree seal
+ Active Carbon Element reduces odors
+ Surpasses the N95 standard, filtering up to 99.9% of particulates down to .1 micron in size (400 times smaller than a human hair)!
+ Independently tested at Nelson Laboratories in Salt Lake City, UT
+ Performance far exceeds that of homemade masks, bandanas, cloth masks, and paper masks

Common uses: 
High intensity, Dust/pollen/smoke/fumes/odors. 


Be sure you choose the filter size that matches your mask size: 
Medium Filter = Medium Mask
Large Filter = Large Mask
X-Large Filter = X-Large Mask


How long does an RZ Filter last? 
The life expectancy of the RZ Filter depends on many variables, such as; particulate exposure density, particulate exposure duration, and user breathing rate. With that said, below are our general guidelines – as the user will have the final call given your exposure.

+ 20-30+ hours of continuous use in heavy dust exposure to things such as; grain bins, off-roading, construction/demolition, etc.

+ 30-40+ hours of continuous use in light dust exposure to things such as; grain bins, off-roading, construction/demolition, etc.

50-60+ hours of continuous use when protecting against allergens, pollutants, odors, etc.

*International Customers: Please Note That You Are Responsible For All Duties/Taxes/Fees With Regards To Import Into Your Country.

Customer Reviews
4.8 Based on 168 Reviews
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Vicente S.
United States United States
I recommend this product
Bad top strap and my glasses fog up

Not to happy, I bought this a few months back for work yes I’ve pinched the top nose part to close the gap but still me glasses got foggy and I even tightened the top and bottom straps. now fast forward to this Covid19 I’ve been using it even more it’s a daily use mask it’s failed at the clip part it came unsowed at the stitches at the mask part of it. I’ve reached out to RZMASK but no response yet!! I’m better off just buying the 3M masks they last me longer.

RZ Mask

Hello Vincente. Sorry for any confusion. We have set up a COVID-19 FAQ response to better answer all inquiries we are receiving. As stated in the FAQ email, please respond to it if your question has not been answered, this will open a ticket with our support team. We would be happy to help!

Jason R.
United States United States
I recommend this product
Great Product

This is an amazing mask. It is very comfortable compared to other similar products. My only complaint is I wish they included a couple spare parts with the kits. I noticed that one of the valve discs is missing on mine.

Rhian L.
Canada Canada
I recommend this product
RZ Masks and filters

Masks are easy to use and comfortable. Changing filters is fairly easy. Individual zipper bag for storage is great. These masks are an easy, light weight bit of peace of mind to carry during a pandemic! We are pleased to have quality, reusable masks that we can and will use in the coming days. Thank you for your professionalism in such a stressful time. We were concerned as the world started getting panicked that we may have issues with our orders, but we had no problems in ordering, delivery, packaging or the products. Safe thoughts. Sincerely, R. L.

Brandon W.
United States United States
I recommend this product
Love it for my workshop!

Great so far. Have not tried the ezflow filters yet. Need one for my wife now. But this virus thing is happening and they are sold out. I will be watching for one for her.

Ben R.
Australia Australia
I recommend this product

Unfortunately with what is happening in the world with COVID19 masks have become a necessity. RZ masks are very comfortable and give full face protection. No gaps on the side like you see with some masks. Their filters also last a long time which makes them cost effective as well. Excellent product.