1
vote
0answers
92 views

What whole-house water filter can I install to remove atrazine from my water?

I recently tested the water in my new(ly purchased) house for a variety of things and was (unpleasantly) surprised to find a positive result for atrazine (or perhaps simazine, apparently a more ...
7
votes
1answer
963 views

When to replace respirator filters?

I've got a respirator like this one: I assume with the particulate filters (for dust) you just change them when they get hard to breathe through, but what about the organic vapor or chemical ...