Company: XAIR
Filing Date: 2025-09-09
Form Type: 424B3
Source: 0001493152-25-012867
Chunk: 1

Company: Beyond Air, Inc.
Filing Date: 2025-09-09
Form: 424B3
Chunk 1
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us or determined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

<div align='center'>The date of this prospectus supplement is September 8, 2025.</div>

<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): September 8, 2025

Beyond Air, Inc.

(Exact Name of Registrant as Specified in Charter)</div>

| Delaware              |     | 001-38892   |     | 47-3812456     |
| (State                
 or Other Jurisdiction 
 of                    
 Incorporation)        |     | -Commission 
 File        
 Number      |     | -I.R.S.        
 Employer       
 Identification 
 No.            |

<div align='center'>900 Stewart Avenue, Suite 301

Garden City, NY 11530

(Address of Principal Executive Offices and Zip Code)

(516) 665-8200

Registrant’s Telephone Number, Including Area Code

(Former Name or Former Address, if Changed Since Last Report)</div>

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

| ☐ | Written                                                                               
 communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)          |
| ☐ | Soliciting                                                                            
 material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)           |
| ☐ | Pre-commencement                                                                      
 communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement                                                                      
 communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

Securities registered pursuant to Section 12(b) of the Act:

| Title                             
 of each class                     |     | Trading   
 Symbol(s) |     | Name                                 
 of each exchange on which registered |
| Common                            
 Stock, par value $.0001 per share |     | XAIR