December 20, 2018 Neal F. Fowler Chief Executive Officer Liquidia Technologies, Inc. 419 Davis Drive, Suite 100 Morrisville, North Carolina 27560 Re: Liquidia Technologies, Inc. Draft Registration Statement on Form S-1 Submitted December 7, 2018 CIK No. 0001330436 Dear Mr. Fowler: This is to advise you that we do not intend to review your registration statement. We request that you publicly file your registration statement no later than 48 hours prior to the requested effective date and time. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Heather Percival at 202-551-3498 with any questions. Sincerely, Division of Corporation Finance Office of Electronics and Machinery cc: Andrew P. Gilbert