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Cover
Dec. 15, 2021
Cover [Abstract]  
Document Type 8-K/A
Amendment Flag true
Amendment Description Amendment No. 1
Document Period End Date Dec. 15, 2021
Current Fiscal Year End Date --12-31
Entity File Number 001-36199
Entity Registrant Name PULMATRIX, INC.
Entity Central Index Key 0001574235
Entity Tax Identification Number 46-1821392
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 99 Hayden Avenue
Entity Address, Address Line Two Suite 390
Entity Address, City or Town Lexington
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02421
City Area Code (781)
Local Phone Number 357-2333
Written Communications false
Soliciting Material true
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol PULM
Security Exchange Name NASDAQ
Entity Emerging Growth Company false