I bought this one for my 5x5. It barely did anything so I returned it. VIVOSUN Electric Mini Dehumidifier, Ultra-Quiet Auto Defrost Dehumidifier with Timer, 2200ML Water Tank and Drain Hose for Basement or Smaller Room https://www.amazon.com/dp/B07YBR37PB/ref=cm_sw_r_cp_api_i_8408JG2NDFYFVTP6JKNE?_encoding=UTF8&psc=1
I upgraded to a $150 GE model from Home Depot and haven’t had any problems since. Brings the humidity down fast if it starts to drift. Now you definitely don’t need something that big for a 2x4x5 but my advice is to don’t skimp and get one strong enough for your space.
VIVOSUN Electric Mini Dehumidifier, Ultra-Quiet Auto Defrost Dehumidifier with Timer, 2200ML Water Tank and Drain Hose for Basement or Smaller Room https://www.amazon.com/dp/B07YBR37PB/ref=cm_sw_r_awdo_navT_g_90ZRMP73JWR492AZ3BY7