An air purifier can considerably enrich the air quality in your home, but many question the safety and efficiency of having it operate 24/7.
In general, it is safe to leave your air purifier running all day, but there are other aspects to ponder.
Different types of air purifiers might have divergent abilities; some are engineered for 24/7 operation, while others might need occasional breaks.
You should also consider the level of indoor pollution. In highly polluted surroundings or in homes with allergy sufferers, running the air purifier continuously can be advantageous.
Thirdly, consider the energy efficiency of your unit. Although air purifiers don't consume much website energy, running one all day will surely add up on your electricity bill.
Another consideration is the noise made by the purifier. Not all units are quiet, and having them run all the time can disturb rest or sleep.
To sum it up, while it's usually okay to run an air purifier all day long, one should consider the type of purifier, the indoor air quality, its energy consumption, and the noise level before deciding.