Also known as ultra-low resistance high-efficiency air filterThe main difference between it and ordinary high-efficiency filters is that the resistance is much smaller, with an initial resistance of around 15Pa. However, the filtration efficiency is similar to that of high-efficiency filters, and it is generally used in fan systems with low residual pressure, such as fan coil systems in various functional rooms of hospitals.

Currently, most of the domestichospitalMost places such as consultation rooms, treatment rooms, medication rooms, dressing and examination rooms, emergency rooms, disinfection preparation rooms, dialysis rooms, and even ICUs use fan coil units for air conditioning. Once the heat exchange components inside the fan coil unit are contaminated with dust and bacteria, a large number of bacteria will grow, posing a risk of direct and cross infection to doctors and patients. On the other hand, it also reduces the heat exchange efficiency of the unit and increases energy consumption. Due to the residual pressure of ordinary fan coil units being within 50Pa, it is not possible to solve the above problems by installing ordinary filters.

If an independent purification unit is selected, not only will the cost be significantly increased, but the unit noise will also not easily meet the requirements of the operating environment; However, other conceptual disinfection and sterilization auxiliary equipment, although with good static indicators, have unsatisfactory dynamic effects in practical applications and high usage costs.

Ultra low resistance high efficiency filter solution

We have developed ultra-low resistance air supply and return devices by combining our own CJL series ultra-low resistance high efficiency filters, which effectively solve the air purification problem in places where fan coil units are used. Cleaned indoor air, prevented the occurrence of patient infections, and improved the working environment for medical staff. Due to the lack of major modifications to the existing air conditioning system, it is particularly suitable for use in some renovation projects.

This device is also suitable for air conditioning and ventilation systems in public places, meeting the requirements of the Ministry of Health's "Hygiene Standards for Centralized Air Conditioning and Ventilation Systems in Public Places", extending the cleaning cycle of pipelines, effectively improving the air quality in public places, and reducing the energy consumption of system operation.

Construction of ultra-low resistance high efficiency filter device

1. Box body of air supply and return device

2 ultra-low resistance filters

3 aluminum alloy louver (grille) air vents with filter screen

Technical parameters reference for ultra-low resistance high efficiency filters

Table 1 Ultra low resistance high-efficiency filter

Filter model （500×400×60）	Initial resistance at different air volumes (Pa)
	290m3/h	440m3/h	570m3/h	700m3/h
CJL—Ⅰ	8	12	16	19
CJL—Ⅱ	14	21	29	38

Filter model （500×400×100）	Initial resistance at different air volumes (Pa)
	290m3/h	440m3/h	570m3/h	700m3/h
CJL—Ⅰ	3	6	10	13
CJL—Ⅱ	8	11	15	19

Table 2 High Efficiency (500 × 400 × 60mm)

Filter model	Rated air volume	Filtration efficiency η% at different particle sizes
	m3/h	≥0.3μm	≥0.5μm	≥0.7μm	≥1.0μm	≥2.0μm	≥5.0μm
CJL—Ⅰ	400	61.8	61.6	79.2	86.3	94.2	96.4
CJL—Ⅱ	400	74.8	79.4	87.4	89.8	93.8	95.8

Filter model	Rated air volume	Filtration efficiency at different sampling times%
	m3/h	0.5min	8th minute	13th minute	19.5th minute	21st minute	25th minute	average
CJL—Ⅰ	400	97.96	99.07	99.30	98.50	99.00	99.29	98.85
CJL—Ⅱ	400	99.34	99.34	99.39	99.47	99.26	99.43	99.37

The characteristics of our ultra-low resistance high efficiency filter

1. High energy efficiency

Reduce system energy consumption by over 30%.

2. Long service life

Assuming an indoor dust concentration of 0.15mg/m ³ and 8 hours of ventilation per day, it will take nearly 200 days to reach the rated dust capacity and require replacement of the filter.

3. Easy installation and maintenance

Connect the air supply and return ports of the fan coil unit to the ultra-low resistance air supply and return devices through hard or soft connections; The upper end of the box of this device has a lifting ring for easy lifting, and is equipped with aluminum alloy louvers, grilles, and nylon filters, which are ready to use immediately; Open the air vent to replace the filter.

Product specifications for ultra-low resistance high efficiency filters

Serial Number	Product Name	model	Airflow (m3/h)	Efficiency of 0.5 μ m	Initial resistance (Pa)	Outer edge size of air vent mm	Box size mm	Filter size mm	Air duct interface size mm
1	Ultra low resistance purification device (including static pressure box, ultra-low resistance filter, air outlet)	R1600	1600	>85%	<20	1200×600	1150×550×300	1100×500×100	1040×440
2		R 1500	1500	>85%	<20	1100×600	1050×550×300	1000×500×100	940×440
3		R 1200	1200	>85%	<20	1000×600	950×550×300	900×500×100	840×440
4		R 1000	1000	>85%	<20	800×600	750×550×300	700×500×100	640×440
5		R 800	800	>85%	<20	600×600	550×550×300	500×500×100	440×440
6		R 600	600	>85%	<20	600×550	550×500×300	500×450×100	440×390
7		R 500	500	>85%	<20	600×500	550×450×300	500×400×100	440×340
8		R 400	400	>85%	<20	600×400	550×350×300	500×300×100	440×240
9		R 300	300	>85%	<20	600×350	550×300×300	500×250×100	440×190

Note: Ultra low resistance high efficiency filter | Ultra low resistance high efficiency air filter can be customized according to user requirements!

Our company specializes in productionUltra-low resistance high efficiency filter | ultra-low resistance high efficiency air filterWelcome to inquire by phone!