The manufacturer claims that the high quality of the fan motors means that they will function continuously for years without undue deterioration in noise levels. In summer, heat production by dehumidifiers can be a problem. With heat exchange ventilators it is not. My dehumidifier consumes 350 watts. A comparable heat exchange ventilator might consume 35 watts.
People have a tendency to switch dehumidifiers off.
Heat exchange ventilators are acceptable for continuous use. No need to empty water container. This includes ability to continue working when the home is empty e.g. during holidays. Unlike dehumidifiers with a drain to the outside, heat exchangers are not affected by frost. Replace indoor air with outdoor air instead of recirculating indoor air and dust.