Prefilters, Save In-Line Space, VAV Systems

Standard Box Style

Nominal Size	Nominal		Pressure Drop		Approx. Media
WxHxD (inches)	Capacity (CFM)	90-95%	80-85%	60-65%	Area (Sq. Ft.)

12x24x4	1000	.75	.70	.55	58

16x20x4	1111	.75	.70	.55	64

16x25x4	1389	.75	.70	.55	80

18x24x4	1500	.75	.70	.55	86

20x20x4	1388	.75	.70	.55	80
20x24x4	1666	.75	.70	.55	96

20x25x4	1736	.75	.70	.55	100

24x24x4	2000	.75	.70	.55	115

With Header

Nominal Size	Nominal		Pressure Drop		Approx. Media
WxHxD (inches)	Capacity (CFM)	90-95%	80-85%	60-65%	Area (Sq. Ft.)

12x24x4	1000	.85	.80	.65	48
16x20x4	1111	.85	.80	.65	53

16x25x4	1389	.75	.70	.55	66
18x24x4	1500	.75	.70	.55	71
20x20x4	1388	.75	.70	.55	66
20x24x4	1666	.75	.70	.55	79
20x25x4	1736	.75	.70	.55	82
24x24x4	2000	.75	.70	.55	95

Notes

1.PD represents clean pressure drop in inches w.g. Recommended final pressure drop for all models is 1.5 inch w.g.

2.Actual filter face size of 24” x 24” and 24” x 12” is 5/8” undercut on height and width. All other sizes are 1/2” undercut on height and width. Actual filter depth is 3-3/4”

3.Efficiency is average and is based on ASHRAE Standard 52.1 and 52.2 test methods.

4.Performance tolerances conform to Section 7.4 of ARI Standard 850.

5.Perfmormance values shown in this publication may be averages or estimates intended to generally represent product styles. Always contact factory for latest actual test data on specific Flanders Precisionaire models.

Prefilters

Prefilters are always a wise choice for the protec- tion of minipleat filters no matter what the efficiency or brand. The closely-spaced pleats are subject to face-loading (bridging) by lint and coarse particles, thus reducing their usual long life. A minimum 25- 30% ASHRAE efficiency pleated panel filter such as the Flanders Precisionaire Prepleat 40 is recom- mended.

Save In-Line Space

Compare the airway lengths of 22” PrecisionPak bag filters and 12” Rigid-Air filter to a 4” PrecisionCell filter when they are installed with 2” prefilters.

VAV Systems

Filter banks should be sized so that the face veloc- ity at maximum design conditions is 625 fpm or less. PrecisionCell II filters may be applied at any capacity between 0 and 625 fpm. Operating a filter bank at reduced flow will greatly increase expected filter life.

Save Storage Space and Shipping Costs

Using the 24” x 24” size as an example, a carton of four PrecisionCell II 4” filters has a volume of 5.3 cubic feet and a weight of 26 lbs. Compare this to four 12” deep rigid separator-type filters packed in four cartons with a total volume of 16 cubic feet and total weight of 80 lbs.

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MSH, II M specifications

The Precisionaire MSH, II M stands as a cutting-edge solution in the realm of air filtration and purification. This advanced device is engineered to enhance indoor air quality significantly, making it a vital addition for both residential and commercial spaces. One of the standout features of the MSH, II M is its robust multi-stage filtration system. This system typically includes pre-filters that capture larger particles such as dust and pollen, followed by HEPA filters designed to trap microscopic contaminants, including bacteria and viruses, ensuring clean and healthy air circulation.

Equipped with a state-of-the-art activated carbon filter, the Precisionaire MSH, II M effectively neutralizes odors and volatile organic compounds (VOCs), creating a more pleasant indoor environment. Furthermore, the filtration system boasts a high Clean Air Delivery Rate (CADR), which indicates its efficiency in removing smoke, dust, and pollen from the air. This ensures that users can enjoy a breathable atmosphere free from harmful pollutants.

The technology behind this impressive device includes intelligent sensors that monitor air quality in real-time, allowing for automatic adjustments to the filtration process. This smart capability not only enhances air purification but also contributes to energy efficiency, as the machine optimizes its operation based on current air quality conditions. Users benefit from easy-to-understand indicators that display filter status and remaining operational time, making maintenance simple and manageable.

Another significant characteristic of the Precisionaire MSH, II M is its quiet operation. Designed with noise-reduction technology, this model allows for continuous use in various settings without causing disruption. Whether in a home, office, or healthcare environment, the MSH, II M maintains effectiveness without compromising comfort.

Additionally, the Precisionaire MSH, II M is built with durability and reliability in mind. Constructed from high-quality materials, it is designed to withstand long-term use while maintaining optimal performance. Its sleek, modern design not only ensures functionality but also makes it an aesthetically pleasing addition to any room.

In conclusion, the Precisionaire MSH, II M combines advanced filtration technologies, smart features, and user-friendly characteristics, making it a leading choice for those seeking to improve their indoor air quality. With its ability to effectively remove pollutants, odors, and allergens, the MSH, II M is an investment in health and well-being, creating a cleaner and safer living environment.