This air purifier does a great job to clean a bedroom’s air from allergens and dust. This seems to be a rebranded popular Levoit one used from Amazon US to work on 230/240volt electricity. Replacement filters currently can be found by searching for “LV-132 Replacement filter”.
I used a power meter and at the lowest setting it is ultra quiet (can barely hear it) and uses only 16 watts. At medium setting it sounds like a desk fan and uses 26 watts. At the highest setting it sounds like a desk fan on a high setting and uses 48-52 watts.
Note: Before first use, you need to open the bottom of it and take off the plastic wrapping protecting the air filter!