Experts recommend staying inside if the pollution level of your city's air has skyrocketed. Here are some simples tips from the experts that will keep your safe from pollutants floating in the air: Avoid going outside for morning exercise or walking. Do not use a high-traffic road for your journeys. Wear a face mask or nasal filter while outdoors. Install an air purifier, so there is appropriate ventilation, and all the pollutants are eliminated. Try to generate less pollution from your end.