AlorAir Sentinel HD55S White Crawl Space & Basement Dehumidifier The AlorAir Sentinel HD55S White is a compact, energy-efficient crawl space and basement dehumidifier designed for low-clearance spaces, sealed crawl spaces, tight basements, storage areas, apartments, shops, offices, factories, bars, restaurants, museums, and computer rooms. It is built for dependable humidity control where a smaller footprint and commercial-grade moisture removal are both important. The HD55S White removes up to 120 pints per day at saturation and 55 pints per day at AHAM, with coverage up to 1,300 square feet. It includes gravity draining, automatic defrosting, MERV-1 filtration, cETL certification, and compatibility with optional remote control sold separately. Why Choose the Sentinel HD55S White? Higher HD55S capacity: 120 PPD at saturation and 55 PPD at AHAM. Designed for crawl spaces and basements: compact cabinet fits many low-clearance spaces. Energy Star highlighted by manufacturer: built for efficient moisture control. Automatic humidistat control: starts and stops based on set humidity level. Gravity drainage: continuous drainage without a built-in pump. Automatic defrost: helps protect operation in cooler conditions. MERV-1 filter: protects the internal system from larger dust and debris. Optional ducting and remote control support: useful for certain crawl space and basement layouts. Common Applications The Sentinel HD55S White is used for crawl space humidity control, basement dehumidification, warehouse moisture control, offices, shops, storage rooms, apartments, factories, bars, restaurants, museums, and computer rooms. It is also helpful where excess humidity can contribute to condensation, corrosion, musty odor, mold growth, or stored inventory damage. Specifications Model AlorAir Sentinel HD55S White SKU HD55S-0NNMW00 Capacity 120 PPD at saturation; 55 PPD at AHAM Coverage Up to 1,300 sq. ft. Power 115 V / 60 Hz Current 4.1 A COP 2.4 L/kWh Airflow 130 CFM / 230 CMH Sound Pressure Level <50 dBA Drainage Gravity draining Temperature Range 33.8°F to 104°F Humidity Range 36% to 90% Refrigerant R32 Filter MERV-1 filter Dimensions 19.2 in x 12.2 in x 13.3 in Weight 41.7 lb manufacturer listed unit weight; DMSI shipping/item weight may differ Defrost Automatic defrosting Installation Notes Place the unit on a dry, level surface. Seal crawl space vents and openings for better moisture control. Plan the gravity drain route so water can flow away properly. Use a grounded electrical connection. Set the desired humidity level using the controls; many crawl space installs target roughly 50% to 55% RH. Clean or inspect the filter and airflow openings as part of routine maintenance. FAQ Is the Sentinel HD55S White good for a crawl space? Yes. It is specifically designed for crawl spaces, basements, and commercial humidity-control applications, with coverage up to 1,300 sq. ft. Does this model include WiFi? No. This is the non-WiFi HD55S White model. Choose the HD55S White WiFi model if app control is needed. Does it have a built-in pump? No. This model uses gravity drainage. Install it where the drain hose can slope downward to an appropriate drain point. Can it be used with optional remote control? The manufacturer lists optional remote control compatibility, with the remote sold separately. What humidity range can it operate in? The listed functioning humidity range is 36% to 90% RH.