what size dehumidifier do i need

What Size Dehumidifier Do I Need ?

What Is A Dehumidifier

A dehumidifier is an electrical appliance that reduces and maintains the level of humidity in the air to improve indoor air quality, enhance comfort, and prevent damage caused by excess moisture. It operates by drawing in humid air, cooling it to condense the moisture, and then collecting the water in a tank or draining it out, before releasing the drier air back into the room. Dehumidifiers are commonly used in homes, basements, bathrooms, and kitchens to control dampness, as well as in commercial and industrial settings to protect goods and equipment from moisture damage. By reducing humidity, dehumidifiers help prevent mold and mildew growth, mitigate musty odors, and create a healthier living environment by reducing allergens such as dust mites.

Dehumidifier Size Chart

Sure, here is a simple dehumidifier size chart that can help you choose the right size based on the area and humidity level of your space:

Room Size/
Relative Humidity Level

400 Sq. Ft.

600 Sq. Ft.

800 Sq. Ft.

1,200 Sq. Ft.

50% to 60%





60% to 70%





70% to 80%





80% to 90%






How to Use This Chart

Measure the Area: Determine the square footage of the room or area you need to dehumidify.

Assess the Humidity Level: Identify the general humidity level of the space (moderately damp, very damp, wet, or extremely wet).

Match the Area and Humidity Level: Use the chart to find the recommended pint capacity for your space.

Additional Tips

Room Usage: For bedrooms or living areas, opt for a quieter model.

Drainage: If the dehumidifier will be used in a basement, consider a model with a continuous drain option.

Climate Considerations: In very humid climates, you may need a dehumidifier with a higher capacity than suggested.

Using this chart will help ensure you select a dehumidifier that effectively manages the moisture levels in your space.

What is a 50 pint Dehumidifier?

A 50-pint dehumidifier is a device capable of removing up to 50 pints of moisture from the air per 24-hour period. It is typically used in medium to large-sized rooms or areas that experience moderate to high humidity levels. Here are some key points about 50-pint dehumidifiers:

Features and Benefits:

1. Capacity:

Moisture Removal: This can remove 50 pints (approximately 6.25 gallons) of moisture per day, making it suitable for spaces ranging from 1,000 to 2,500 square feet, depending on humidity levels.

2. Ideal Applications:

Basements: Helps prevent mold and mildew in typically damp areas.

Living Spaces: Suitable for large living rooms, bedrooms, or open floor plans.

Laundry Rooms: Useful for drying clothes and reducing moisture generated from washing machines.

3. Key Features:

Adjustable Humidistat: Allows you to set the desired humidity level.

Auto Shut-off: Turns off the unit when the water tank is full to prevent overflow.

Continuous Drain Option: Provides the option to connect a hose for continuous drainage, eliminating the need to empty the tank manually.

Energy Efficiency: Many models are Energy Star certified, ensuring they use less energy while maintaining effective performance.

Filter Indicator: Alerts you when the filter needs cleaning or replacing to maintain optimal performance.

Portable Design: Often includes caster wheels and handles for easy movement between rooms.

4. Maintenance:

Water Tank: Regularly empty the water tank unless using the continuous drain option.

Filter Cleaning: Clean or replace the air filter periodically as per the manufacturer's instructions to ensure efficient operation.

Example Uses:

High Humidity Areas: Ideal for use in regions with high humidity to keep indoor air comfortable.

After Flooding: Helps in drying out areas affected by water damage.

Health Benefits: Reduces allergens such as dust mites and mold spores, contributing to a healthier indoor environment.

Alorair Dehumiditifier

Known for reliability and efficiency, often features a built-in pump for continuous drainage.

Offers smart digital controls, a large tank, and energy efficiency.

Popular for its user-friendly design, energy efficiency, and quiet operation.

Renowned for quiet operation and robust performance.

Offers modern designs with advanced functionalities.

Crawl Space Dehumidifier

A crawl space dehumidifier is a specialized appliance designed to manage and control humidity levels in crawl spaces, which are often prone to excess moisture due to limited ventilation and their proximity to the ground. These dehumidifiers are compact yet powerful, capable of removing significant amounts of moisture daily, typically between 50 to 90 pints, depending on the model. Built with robust materials to withstand harsh conditions, they feature continuous drain options, automatic defrost mechanisms, and adjustable humidistats for precise humidity control.

Many models also include air filters to capture dust and allergens, improving overall air quality. By preventing mold growth, structural damage, and musty odors, a crawl space dehumidifier plays a crucial role in maintaining a healthy and safe home environment. Installation is straightforward, involving proper placement and drainage setup, while maintenance primarily involves regular filter cleaning and occasional checks for blockages. Reliable models such as the AlorAir Sentinel HDi90, are excellent choices for ensuring efficient and effective moisture management in crawl spaces.

Commercial Dehumidifier

A commercial dehumidifier is a powerful and durable appliance designed for use in industrial and commercial settings where controlling humidity levels is crucial. These dehumidifiers are engineered to handle large spaces such as warehouses, manufacturing plants, gyms, or swimming pools, effectively removing moisture from the air to prevent damage to equipment, materials, and products.

With high-capacity moisture removal capabilities, often ranging from 70 to 400 pints per day or more, commercial dehumidifiers are built to withstand the demanding conditions of industrial environments, featuring heavy-duty construction and industrial-grade components. They come equipped with advanced features such as adjustable humidistats, large-capacity water tanks or continuous drainage options, and remote monitoring capabilities for easy operation and maintenance. Whether in factories, commercial buildings, or specialized environments like indoor sports facilities, commercial dehumidifiers play a vital role in maintaining optimal conditions for productivity, comfort, and safety.