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What is the difference between a desiccant dehumidifier and a condenser dehumidifier?

The distinction is based on the physical principle and operating conditions.

Condensation dehumidifier: A compressor cools an evaporator to about 5-10°C. Humid air passes over this cold evaporator, and the moisture condenses into droplets that drain into a tank or drain. Maximum efficiency between 15 and 35°C with humidity >50%. Capacity 20-150 L/day, consumption 300-1,500W. Quiet models (45-55 dB), low maintenance, affordable purchase cost (€500-€3,000). Covers 80% of standard professional needs.

Desiccant dehumidifier: A silica gel absorption rotor captures moisture through chemical adsorption. The rotor rotates slowly, part of it is continuously regenerated by hot air (120-140°C), and the moisture is expelled to the outside. Works efficiently down to -10°C and extracts moisture even at <30% humidity. Capacity 30-400 L/day, consumption 600-3,000W. Louder (60-70 dB), higher investment (€2,000-€8,000).

Selection criterion: Temperate site >15°C = condensation is sufficient. Winter site, cold room, or need to reach <35% humidity = desiccation is mandatory.

What dehumidifier capacity for my professional volume?

Sizing depends on volume, humidity level, and drying urgency.

Basic rule: 1 liter extracted per day for 10-12 m³ of volume under standard conditions. A 400 m² × 3 m = 1,200 m³ space requires a 100-120 L/day dehumidifier. For rapid drying (damage, urgent construction site), double the capacity: 200-240 L/day.

Practical examples: Small workshop 100 m² (300 m³) with moderate humidity 70% → 30-40 L/day is sufficient. Warehouse 500 m² (1,500 m³) humidity 75-80% → 120-150 L/day recommended. Water damage in a 150 m² house with saturated walls → 2-3 units of 80 L/day for 3-6 weeks.

Increase factors: Frequent air changes (open doors) +30%. Temperature <15°C +40%. Saturated porous materials (plaster, wood) +50%. Presence of wet processes (washing, steam) +60%.

Multiple units: above 1,000 m³, prioritize several medium-sized dehumidifiers (60-80 L/day) strategically distributed rather than a single large unit. Better air circulation, more homogeneous drying, redundancy in case of breakdown.

What is the actual power consumption of an industrial dehumidifier?

No, our products are not tested on animals.

Extracted water disposal: tank or continuous drainage?

Vous avez la possibilité d'échanger votre commande dans les 14 jours suivant sa réception. Pour cela, le produit ne doit pas avoir été porté et être renvoyé dans son emballage d'origine avec l'étiquette.