Probably a heat exchange system, that captures the outgoing air's heat and warms the incoming air would be better than just recirculating the old air with a couple ceiling fans. Can't blame the pool operators for trying to save money keeping in the warmth in the cooler climates, but there are better ways than just recirculating the same air over and over.
Rowing & sculling sounds like a good alternative. Here at Humboldt Bay, the water's too cold for swimming without a wet suit, but lots of kayakers and sculling crews all the time, and surfers and abalone freedivers just outside the bay. DDeden
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Originally Posted by naiad
Then it is probably ok. Unfortunately all the pools I have used use chlorine, and some of them have very poor ventilation. My problem started soon after I started using a different pool from usual for swimming. It had poor ventilation and lots of chlorine. The children's pool was a murky brew of chlorine and dirt.
In another article it mentions that the air quality may be much worse at the surface of the water, so measurements in the pool building may not reflect what swimmers are actually breathing.
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