Inogen Investor Presentation — November 2022

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Inogen, Inc. Overview

Investor Presentation

Notice Regarding Forward -Looking Statements

This presentation and theaccompanying oral presentation (the “Presentation”) include forward -looking statements within themeaning ofthePrivate Securities

Litigation Reform Act of1995 ,which are based oncurrent expectations, estimates and projections based oninformation currently available to

management .These forward -looking statements include, among others, statements relating toourbusiness strategy; aswell asfuture revenue potential and

profitability ;thesize and estimates ofgrowth intheoxygen therapy market ;ourestimates concerning market penetration ;product development ;expectations

related totheCompany’s rental strategy and overall growth prospects .Allstatements other than statements ofhistorical facts contained inthis Presentation,

including statements regarding our future results ofoperations and financial position, business strategy, prospective products, plans and objectives of

management forfuture operations, and future results ofcurrent and anticipated products areforward -looking statements .Forward -looking statements are

typically identified bywords like “believe,” “anticipate,” “could,” “should,” “estimate,” “expect,” “intend,” “plan,” “project,” “will,” “forecast,” “budget,” “pro

forma,” and similar terms .Forward -looking statements aresubject tonumerous risks and uncertainties that could cause actual results todiffer materially from

currently anticipated results, including butnotlimited to,risks arising from thepossibility that wewill notrealize anticipated revenue; theimpact ofpossible

reduced reimbursement rates ;the possible loss ofkey employees, customers, orsuppliers ;risks related toregulatory clearance and our ability tosell our

products ;and intellectual property risks ifweareunable tosecure and maintain patent orother intellectual property protection fortheintellectual property

used inour products .Inaddition, our business issubject tonumerous additional risks and uncertainties, including, among others, risks relating tomarket

acceptance ofourproducts ;ourability tosuccessfully launch new products and applications ;competition ;oursales, marketing and distribution capabilities ;our

planned sales, marketing, and research and development activities ;interruptions ordelays inthesupply ofcomponents ormaterials for,ormanufacturing of,

our products ;seasonal variations ;unanticipated increases incosts orexpenses; and risks associated with international operations .The known risks and

uncertainties aredescribed indetail under thecaption “Risk Factors” and elsewhere inourAnnual Report onForm 10-Kfortheyear ended December 31,2021 .