What does a used Puritan Bennett 840 cost?

Based on 8 observed complete-system listings, the typical (median) used Puritan Bennett 840 sells for $368, ranging from $212 to $800. Condition, configuration, and seller drive most of the variance.

Where can I buy a used Puritan Bennett 840?

Currently observed on: eBay, DOTmed, LabX. Listings come and go - we update daily from these sources.

Is now a good time to buy a used Puritan Bennett 840?

There are currently 3 live below-typical listings. The best discount we see right now is 18% below typical ($175 vs ~None typical). Verify condition before purchase - low price often means wear, missing accessories, or for-parts.

How fresh is this price data?

We've been tracking comp medians for this device since 2026-05-30 (40 daily snapshots). The page refreshes daily; live deals show their as-of date per row.

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Clinical Asset Index

by VOS Supply Group

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Price Guide

Used Puritan Bennett 840 Price Guide

Name: Puritan Bennett 840
Brand: Puritan Bennett
Availability: InStock

Puritan Bennett · 840 · Used market pricing intelligence

Good dataSufficient peer-group data for directional pricing.

Updated July 9, 2026

Active Listings

192

observed now

Historical Observations

2,383

all-time data points

Valid Comps

across 4 buckets

Sources

active for this device

Index Price

$368

● Firmobserved asking — not an appraisal

$287most sell here$551

Built from comparable complete systems · 8 comps · 4 sources

Most used Puritan Bennett 840 complete systems sell around $368. We've seen 8 priced between $212 and $800. Parts and modules are tracked separately — part / accessory (8 comps · median $249), major module (2 comps, collecting — observed $76–$200), for parts / repair (1 comp, collecting) — so the complete-system price isn't skewed by mixing categories.

Market Valuation by Listing Type

Median is the primary statistic — used clinical pricing is full of outliers and the median ignores them.

Complete System

8 comps

typical $368 · most sell $287 – $551 · full observed range $212 – $800 (incl. outliers)

$368

median · mean $429

Major Module

2 comps

Thin group

observed $76 – $200 · 2 listings

Collecting

2 listings

Part / Accessory

8 comps

typical $249 · most sell $137 – $404 · full observed range $80 – $500 (incl. outliers)

$249

median · mean $268

For Parts / Repair

1 comps

Thin group

Active Listings

Puritan Bennett 840 Ventilator without Compressor

eBay

$234

External →Verify

Puritan Bennett 840 Vent ~ Part # 4-071800-00 H, 4-072400-00, 4-071900-00

Methodology

Clinical Asset Index aggregates listing data from eBay, GovDeals, DOTmed, HiBid, LabX, and PublicSurplus daily. Each listing is classified by type (complete system, major module, part / accessory, for parts / repair). Medians and ranges are computed only within peer groups — a complete system is never averaged with parts. Confidence thresholds: comps ≥ 0.65; deal-feed device-match ≥ 0.75 and classification ≥ 0.65. Median is the primary statistic; the mean is shown only as a small secondary number because outliers dominate this market. Data is directional — always verify independently before purchase. Read full methodology →

Puritan Bennett 840

Puritan Bennett

840

Quick Stats

Active listings192

Historical observations2,383

Sources4

Comp buckets4

CoverageGood

Verify a Listing Full Intelligence Report

Clinical Asset Index provides observed market intelligence — not an appraisal, not medical or regulatory advice. Always verify device condition, service history, regulatory status, and seller claims before purchase.

Independent of, and not endorsed, sponsored, certified, or authorized by — and not an agent of — any marketplace, manufacturer, or source. Market Index values are estimates based on observed listing data and do not represent appraisals or guaranteed sale prices.

Affiliate disclosure: CAI may earn a commission from some outbound marketplace links (eBay Partner Network). This does not influence which devices are tracked, the comps shown, the medians/tiers computed, or which listings appear in the deal feeds. See our disclosure for the full statement.

FIRM PRICE$368 median · most sell $287–$551 · 8 comps (firm)Full range $212–$800 (incl. outliers)

5+ complete-system listings observed — the median is directional and defensible. Always verify condition + configuration before purchase.

Live deals — below typical price

Currently-observed listings priced below the $368 median. Observed asking prices, not verified sales. Verify condition before purchase.

Puritan Bennett 740 840 7200 Ventilator 2-Hinge Support Arm, Free Shipping!

eBay · 18% below — · 4d ago (as of Jul 5, 2026)

$175

View →

Puritan Bennett 740 840 7200AE 7200 Ventilator 2-Hinge Support Arm

eBay · 15% below — · 5d ago (as of Jul 4, 2026)

$180

View →

Puritan Bennett 740 840 7200AE 7200 Ventilator 2-Hinge Support Arm

eBay · 11% below — · today (as of Jul 9, 2026)

$190

View →

See current listings on eBay

Live search results for Puritan Bennett 840. Verify condition and accessories before purchase — observed asking prices are not verified. CAI may earn a commission from clicks.

Browse on eBay →

Price tracking history

Tracking this device's comp median since May 30, 2026 (40 daily snapshots). Median down 69.4% ($1,200 → $368) over the tracked period. Historical median range: $313 – $3,000.

See the daily sparkline on the device page.

Related guides

Same modality, ranked by complete-system sample size.

Maquet Servo-i

Firm · 9 comps · ~$6,295

Respironics V60

Firm · 5 comps · ~$250

Drager Evita XL

Limited · 2 comps

GE Engström Carestation R860

What to verify before buying

Generic checklist for ventilator — these are the items that drive the largest price variance.

Verify blower hours and remaining-life estimate.
Confirm all breathing circuit components are present and unworn.
Request the most recent calibration documentation.
Check FDA recall status against the specific model + serial number.
Confirm O2 sensor and flow sensor status (consumables that age).

FAQ

Every answer is built from real observed data — no AI prose, no fabricated specs.

What does a used Puritan Bennett 840 cost?: Based on 8 observed complete-system listings, the typical (median) used Puritan Bennett 840 sells for $368, ranging from $212 to $800. Condition, configuration, and seller drive most of the variance.
Where can I buy a used Puritan Bennett 840?: Currently observed on: eBay, DOTmed, LabX. Listings come and go - we update daily from these sources.
Is now a good time to buy a used Puritan Bennett 840?: There are currently 3 live below-typical listings. The best discount we see right now is 18% below typical ($175 vs ~None typical). Verify condition before purchase - low price often means wear, missing accessories, or for-parts.
How fresh is this price data?: We've been tracking comp medians for this device since 2026-05-30 (40 daily snapshots). The page refreshes daily; live deals show their as-of date per row.

About this guide: Prices reflect publicly observed listings, not verified sales. Condition, configuration, and seller drive most of the variance. Clinical Asset Index does not broker, sell, inspect, or appraise. See methodology for full criteria. Confidence tiers: Firm = ≥5 CS listings; Limited = 1–4; Collecting = 0.