being able to open your windows is a great thing. in fact studies have shown that indoor pollution may be worse than outdoor pollution. that's due to a combination of chemicals that we use in the home and keeping our windows closed so nothing can get out. the good thing about being on the coast is that there is typically a breeze which would both help keep air moving in your home to help air it out as well as keep the outside air moving to help reduce any outdoor pollution. however even though coastal air is often cleaner than other areas it really depends on how much local pollution there is in your area. in addition if you have allergies keeping your windows closed might be better to help keep out outdoor allergens especially ragweed in the fall. here's more information on sources of indoor air pollution
is coastal air clean? we live about 300 yards from the ocean. no trees grass plants etc. are windows open healthy?