| Cover | Nov. 07, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 07, 2022 |
| Current Fiscal Year End Date | --08-31 |
| Entity File Number | 333-228161 |
| Entity Registrant Name | EvoAir Holdings Inc. |
| Entity Central Index Key | 0001700844 |
| Entity Tax Identification Number | 98-1353613 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 31-A2, Jalan 5/23A |
| Entity Address, Address Line Two | 6 ½ Miles off |
| Entity Address, City or Town | Jalan Kepong |
| Entity Address, Country | MY |
| Entity Address, Postal Zip Code | 52000 Kuala Lumpur |
| City Area Code | +603 |
| Local Phone Number | 6243 3379 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 |
| Trading Symbol | UNEX |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | true |
| Entity Information, Former Legal or Registered Name | Unex Holdings Inc. |
