YIDINGAIR FILTRATION
Product overview
What it is and where it fits.
The AR504 encapsulates activated carbon granules in nonwoven fabric, so the media is held in place and dust shedding is minimised — important in semiconductor fabs, precision electronics and laboratories where the filter itself must not become a particle source.
Media grades target different gases: VOCs and common outdoor pollutants such as SO₂, NO₂, ozone and H₂S; acidic contaminants such as HCl, HF and sulfuric acid; and ammonia and amines. Depths of 2 to 11½ inches are listed in cardboard or metal frames.
- Filter type
- Encapsulated carbon (gas-phase), low shedding
- Grade 853 (2750)
- VOCs, SO₂, NO₂, ozone, H₂S
- Grade 875 (2751)
- Acid gases: HCl, HF, sulfuric acid
- Grade 147 (2752)
- Ammonia and amines
- Depths
- 2, 4 in (card or metal); 5⅞, 11½ in (metal)
- Sizes (catalogue table)
- 289 / 495 / 595 × 595 mm, 150 and 292 mm deep
- Rated airflow (catalogue)
- 1,425 – 3,400 m³/h
Typical applications
- Semiconductor fabs and cleanroom make-up air (AMC control)
- Precision electronics and optics production
- Laboratories and air handling systems
Construction & performance
Low-shedding gas filtration
Encapsulated carbon media is intended for gas control in semiconductor facilities, precision electronics, laboratories and air handling systems.
Media grades
853 (2750): VOCs and common outdoor contaminants including SO₂, NO₂, ozone and H₂S. 875 (2751): acidic contaminants including HCl, HF and sulfuric acid. 147 (2752): ammonia and amines.
Frame options
The catalogue lists 2- and 4-inch versions with cardboard or metal frames, and 5⅞- and 11½-inch versions with metal frames. Box, single-flange and double-flange formats can be discussed.
Selection & service life
Removal efficiency and capacity depend on the gas mixture, concentration, temperature, humidity and airflow. Select the media for the target pollutant and confirm pressure drop and replacement criteria.
Selection guide
How to choose.
Select the grade for the gas
Use 853 for mixed outdoor pollutants and VOCs, 875 for acid gases and 147 for ammonia and amines. Layer grades for mixtures.
Depth for residence time
Deeper filters give longer contact time and capacity; choose according to concentration and required service life.
Technical data
Specifications & dimensions.
Rated airflow in m³/h, pressure drop in Pa, actual dimensions in mm, nominal sizes in inches. Swipe tables sideways on small screens.
| Nominal size (in) | Actual size (mm) | Rated airflow (m³/h) | Initial pressure drop (Pa) | Removal efficiency |
|---|---|---|---|---|
| 12 × 24 × 6 | 289 × 595 × 150 | 1700 | 100 | Depends on site conditions |
| 20 × 24 × 6 | 495 × 595 × 150 | 1425 | ||
| 24 × 24 × 6 | 595 × 595 × 150 | 3400 | ||
| 12 × 24 × 12 | 289 × 595 × 292 | 1700 | 87 | |
| 20 × 24 × 12 | 495 × 595 × 292 | 2850 | ||
| 24 × 24 × 12 | 595 × 595 × 292 | 3400 |
| Type | Specification | ||||
|---|---|---|---|---|---|
| Construction | Filter media | Activated carbon granules encapsulated in nonwoven fabric | |||
| Support material | Separator | ||||
| Sealant | PU BASE | ||||
| Gasket material | Neoprene rubber | ||||
| Frame material | Metal frame | ||||
| Frame type | Box type | ||||
Catalogue values at rated airflow. Test data for your exact configuration is available on request.
Original Yiding catalogue (Chinese) ↗FAQ
Common questions.
What is airborne molecular contamination (AMC)?+
Gaseous contaminants — acids, bases, organics — that can damage sensitive processes such as semiconductor manufacturing even at very low concentrations. Chemical filters remove them from cleanroom air.
Why encapsulated carbon?+
Enclosing carbon granules in nonwoven fabric keeps them in place and reduces particle shedding, so the chemical filter does not add particles to clean air.
