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 fine to leave your air purifier running all day, but there are other aspects to look into.
Different types of air purifiers might have divergent abilities; some are engineered for 24/7 operation, while others might need occasional breaks.
Secondly, the state of your indoor air should be considered. If you live in an area with excessive pollution levels or have a member in your household with allergies, a continuous operation could be necessary.
The energy consumption of your air purifier is another aspect to ponder. Even though these devices don't usually use a lot of energy, constant use will affect your energy bill.
Another point is the noise generated by the purifier. Some models can be quite loud, and it could be disruptive if operated all the time.
To sum it up, while it's usually safe to check here 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.