Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Will this fit over a gas mask?
Document: I use this shield whenever I do any grinding or sharpening. The plastic is thick and I can't see anything I do shooting up and breaking it. I feel safe when its covering my face. The mask will flip up if you need to get it out of the way and the head size is adjustable which is nice so you can get a real tight fit in the event you are using it when you are under a car or whatever.
I can use a dust mask with this and it protects my full face instead just my eyes. Comfortable and strong.
My boyfriend loves his face mask. He does not always need it but when he had to weld a bunch of parts for the building of his trike, it came in handy.
Comfortable (had it on for about an hour), flips up nicely (like a welding mask), can wear a respirator to filter air (for chimericals) under it, and keep my eye glasses on. Only complaint, I had some fogging. May want to get anti-fog for it.
Was for a costume. I liked the product, but can't rate it's usefulness as a face shield. Fit well, stayed on all night.
The strap is not elastic; it's two parts and they need to be brought together and then fastened. If they can't be fastened then you can't use the mask, since it's just going to fall down and off the second you remove your hand from it. The fastener is essential to the mask.The fastener is what is going to break. It consists of two parts, male and female.
I bought this for my wife she is a pet groomer , when she washes the dogs to keep the water from the dog off her facewhen they shake it does not fit her head and is too close to her face making her feel like she cant breath
A very good product that is well worth the money!, I've priced these same typeshields in stores, I got a better deal with Amazon!, the fit is good, the shield don't fogadjustable for a comfortable fit.
You're supposed to snug the strap around your head then, after it's the right snugness, fit the bumps into the holes so it stays at that snugness. The whole thing would just come apart even after you'd done this because the male and female parts don't have the depth to resist coming apart on their own.
I wore this as part of a Halloween costume. There's a leather band that makes the mask sit more comfortably on your head. It wasn't too bad to wear, but when I started sweating i took it off and the leather band came off with it. Luckily I only needed it for the one night, but if you're looking for something that will last through multiple jobs I'd recommend looking elsewhere.
Answer: yes