Home > Newsletters > Need to Know > Set up an air filter at home Updated 12 May 2016 Action point 0 When suffering from allergies caused by pollen it is better to go outside after a good rain because rain clears pollen from the air. It’s best to stay indoors on dry, windy days. Read more about preventing allergies. More: Need to KnowSet up an air filter at home advertisement Other news News Thank you for caring Medical How to recognise and combat your smoking triggers Medical 5 natural ways to treat ringworm News Yet another selfie? You might be a narcissist Medical All that social media may boost loneliness, not banish it Medical Monkeys can carry zika virus, scientists discover From our sponsors Dementia and Incontinence: what you need to know Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract Live healthier Quit smoking » How to beat triggers that make you crave a cigarette You need to learn how to beat the behavioural, environmental and emotional triggers if you want to succeed in quitting smoking. Hygiene » Your showerhead may be bathing you in germs You probably think showering will wash away dirt and germs, but your showerhead might dump nasty bacteria on you instead that may cause lung infections.