Our expert says:
You can buy these at most supermarkets - read on the product which pests they kill though, and check that 'dust mite' is on the list, or they might be ineffective. Don't depend on such sprays only - it's best for your and the environment's health to use such chemicals as little as possible. There are many other things you should do to keep numbers of dust mites down:
Have a look at this article for lots of good tips:
'How to get a bedroom free of housedust mites'
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