v3.26.1
Cover
 6 Months Ended
Apr. 30, 2026
Entity Addresses [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name HNO International, Inc.
Entity Central Index Key 0001342916
Entity Tax Identification Number 20-2781289
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One 41558 Eastman Drive
Entity Address, Address Line Two Suite B
Entity Address, City or Town Murrieta
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92562
City Area Code 951
Local Phone Number 305-8872
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 50 West Liberty Street
Entity Address, Address Line Two Suite 880
Entity Address, City or Town Reno
Entity Address, State or Province NV
Entity Address, Postal Zip Code 89501
City Area Code 775
Local Phone Number 322-0626
Contact Personnel Name Nevada Agency and Transfer Company