Technical Parameters:
| MODEL | Air Volume (m3/h) | HEPA Filter Size (W×L×H)(mm) | External Dimension (W×L×H)(mm) | TDF Dimension | Ceiling Hole Size | Wright(Kg) |
| A×B | C×D | |||||
| GFU-5Ⅰ/Ⅱ | 500 | 320×320×220 | 370×370×560/542 | 200×200 | 380×380 | 24 |
| GFU-10Ⅰ/Ⅱ | 100 | 484×484×220 | 534×534×560/542 | 320×200 | 545×545 | 36 |
| GFU-10Ⅰ/Ⅱ | 610×610×150 | 660×660×560/542 | 320×200 | 670×670 | 42 | |
| GFU-15Ⅰ/Ⅱ | 1500 | 726×484×220 | 776×534×560/542 | 400×200 | 786×545 | 56 |
| GFU-15Ⅰ/Ⅱ | 630×630×220 | 680×680×590/572 | 320×250 | 690×690 | 52 | |
| GFU-15Ⅰ/Ⅱ | 915×610×150 | 965×660×560/542 | 500×250 | 975×670 | 58 | |
| GFU-20Ⅰ/Ⅱ | 2000 | 968×484×220 | 1018×534×590/572 | 500×200 | 1030×545 | 64 |
| GFU-20Ⅰ/Ⅱ | 1220×610×150 | 1270×660×560/542 | 630×250 | 1280×670 | 66 | |
| GFU-22Ⅰ/Ⅱ | 2200 | 945×630×220 | 995×680×590/572 | 500×250 | 1005×690 | 70 |
| GFU-23Ⅰ/Ⅱ | 2300 | 1260×630×220 | 1310×680×590/572 | 630×250 | 1325×690 | 72 |
