This problem can be rectified by positioning your hands correctly. Please start by checking that the two red latches on the side of the HPP filter are closed. Then hold the front edge of Viktor with your left hand. With your right hand, push underneath where it reads “Push to open”. Exactly the same procedure can be followed when opening the door. The door is intentionally difficult to open and close because it needs to be tightly sealed to ensure the best possible cleaning results.
Very small quantities of ozone are produced as a by-product during the electrostatic filtering of air. However with Viktor, those tiny quantities are well below the limits prescribed by law and in no way harmful to health. The minimal ozone emissions are generally adsorbed again by the activated carbon filter and do NOT enter the indoor air. Unlike ozone generators which are harmful to health, Viktor does not produce ozone in order to purify the air. If you can smell ozone when your Viktor is in operation, this seemingly similar smell may even be coming from the new activated carbon and will usually disappear after the device has been in operation for a few hours.
If the HPP filter is clogged with dirt or not completely dry after cleaning, you may hear crackling noises from inside the device or Viktor may stop working altogether. Only use Viktor if the HPP filter is completely dry and clean the filter regularly. You will find instructions on cleaning the HPP filter printed on the side of the HPP filter.