SUPERGUM Gas Mask Filter, CBRN 40mm, Certified Israeli Gas mask Filter | Long Shelf Life

Well packed good quality

I use these for my consulting firm so they MUST work. To those worried about the foil vacuum sealing I talked directly with the company engineers. They told me the vacuum packed silver foil is simply packaging and has nothing to do with the shelf life. The ones they ship to the military dont even have the foil packaging and still have a 20 year shelf life. The shelf life of 20 years is for the canister and the 2 seals on the canister itself. If the two seals on the canister are intact the 20 year shelf life is intact. The following was their direct message to me "All the filters we supply to armies around the world are not supplied with the aluminum packaging. Some customers ask us for another case of this type. I would like to bring to your attention that if the plastic caps on the filters in the front and back are intact then there is no fear that the filter has been damaged and therefore its expiration date remains the same."

I've read several complaints of holes in the vacuum shrinking so I was a little worried that I might receive the same. But this first one that I received appears to have an excellent vacuum on it. Maybe the unlucky few were more likely to post reviews. I hope the rest I get come like this. :)Update: The next 2 filters came without a vacuum seal. I'm sure they will still serve their purpose if needed but a vacuum seal would definitely improve shelf life.

If I ever need it, it works, I don't die, and ends up not being the end of the world, I'll update.

This is an excellent filter that allows a nice flow of fresh air into my PAPR mask while cleaning out dangerous particles that might otherwise enter my lungs from the welding and grinding processes I am involved in.I love my lungs. I keep them very close to my heart. I caress them every day. Something so important to me must be cared for with the love and respect that they deserve. So, I have a PAPR device to protect my lungs when grinding and welding. I love to grind and weld metals almost as much as I love my lungs.This filter is a replacement to the one that came with the PAPR mask. The original one did its job very well. I had been unwittingly exposing my lungs to fiberglass fibers. I was using fiberglass welding curtains around my welding booth. The original filter caught a bunch of the fibers right out of the air, and you can see them in the filter. I have since gotten rid of the fiberglass curtains and replaced them with welding curtains made from a translucent material.

I love the air tight packaging, and long shelf life. CBRN filters like these are rated for 12-24 hrs of use, less if you are in a "highly contaminated" area. Take that into consideration when stocking up. I decided to go on a 1-per month subscription for the next 6 months. I figure, if I need a gas mask for longer than a week, I will probably just become a mutant cannibal anyway, and look forward to eating you all. Cheers!

Filter is brand new. Expire date of 2044 and came in a vac sealed bag for protection/long life.

I bought a good gas mask 'just in case' a couple years ago, and then realized the canister is only good for a few hours, so I started having these delivered 1 a month by subscribe and save. 40+ bucks a month is insurance for my lungs when the fertilizer hits the ventilator. I just wish I had bought a mask with a drinking tube, and a really good CBRN suit.