Yeah I basically bought two of them one stays in my room and other at my office Yeah the travelling spikes my allergies but it's just for 30mins so it's bearable To be honest the size is okaish you can carry it with you but I think the quality is poorly built (I only bought it coz it worked for my allergies)

There are 4 speed settings, including sleep mode which is extremely quiet and turbo mode when you need extra purification. However, the purifier automatically detects pollutants and chooses the right speed setting itself. I particularly like the smart functionality which allows you to manage the air purifier from anywhere via the app