Allegro 2041-12K | Bitter (Denatonium Benzoate) Fit Test Solution | 6 Glass Ampules | OSHA Qualitative Respirator Fit Testing | for Dust & Mist Respirators | Made in USA

Works great for testing.

Easy to use

Quick delivery. As advertised.

Our safety trainer uses these vials on a regular basis. He only has one complaint - sometimes the vials are not full; he said the last box half of the vials were not full, BUT these are still the best product that you can buy.

Great product

Excellent!!

If you want to ruin one salad, put it on a salad. If you want to ruin EVERY salad, put it on forks. For your health!

Ordered this to do a home fit test on my masks and when i was pressing on the ampule as instructed, the thing split into a ton of shards and multiple pieces went into my finger. I had to dig them out with a tweezers. It is bitter solution so that’s accurate but I definitely won’t be ordering this again and don’t really feel good about using the rest of them unless i can find rubber gloves to put on first. The company should put a note somewhere on it that it’s glass and also put some kind of rubber coating on it because it’s literally just the paper wrapping and then shards of glass underneath when you squeeze the ampule to dispense the liquid. Big hazard in my opinion.