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Engineering for Dignity
An Open-Source Product Development Initiative for Worker Safety
A personal engineering initiative focused on designing and openly publishing scalable wet scrubber–based respiratory protection systems for workers exposed to silica dust.
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Personal Conviction
Why This Matters
"There are many marriages filled with love. If I can save a few men from untimely death, I may have been of some consequence for the survival of the feeling of love."
The Human Cost
Stone masons exposed to silica dust face premature respiratory failure. The outcome is not merely medical — it is social. Villages are left with widows. Families inherit debt instead of a future.
Behind every worker is a marriage built on responsibility, affection, and shared purpose. If engineering can intervene, it must.
A Design Correction
This initiative is not charity. It is a design correction.
If a safety product is not adopted, the failure lies in engineering — not in the worker.
Professional Foundation
The Finsen Ritter Journey
Finsen Ritter was founded in 2020 with ₹5 lakh of personal savings. From a small engineering setup, it evolved into a process-driven EPC organisation — now approaching ₹100 Crore turnover through disciplined engineering and structured execution.
PSA Oxygen & Nitrogen Plants
High-purity gas generation systems for industrial and medical applications.
Hydrogen Electrolysers
Green hydrogen production through advanced electrolysis technology.
Bio-CNG & Gas Refining
Biogas upgrading and gas conditioning for clean fuel applications.
Industrial Filtration
Gas conditioning and particulate removal for process environments.
Pressure & Gas Handling
Engineered pressure vessel and gas management systems.
Automation & SCADA
Integrated control and monitoring for plant-wide operational intelligence.

This open-source initiative is a personal venture, built on the technical competence and execution discipline developed through the Finsen Ritter journey. It is not a corporate programme.
Problem Definition
The Engineering Problem
Chronic silica dust exposure among stone masons leads to progressive, irreversible lung damage. The issue is well-documented — yet unsolved at the point of adoption.
Silica Dust Exposure
Fine particulate inhalation during stone cutting and shaping operations.
Progressive Lung Damage
Silicosis develops over years, causing irreversible respiratory failure.
Low Mask Adoption
Existing masks are impractical for long-duration field work in high-dust environments.
Core Insight
The issue is not awareness — it is design inefficiency. Existing solutions fail to account for real working conditions: heat, duration, comfort, and cost of replacement filters.
Solution Concept
Wet Scrubber–Based Positive Pressure Respiratory System
A fundamentally different approach: replace disposable filter media with a water-based scrubbing mechanism that captures silica particulates through droplet impaction — no pre-filtration stage required.
The system leverages high-turbulence contact between water droplets and dust-laden air, followed by sedimentation and blower-driven delivery of scrubbed air at positive pressure to the mask interface.
1
Simplicity
Minimal moving parts, no proprietary consumables.
2
Field Maintainability
Water change and basic cleaning — no specialist skills needed.
3
Low Replacement Cost
Water is the primary filter medium. No cartridge dependency.
4
Scalable Fabrication
Designed for local manufacture with standard workshop tooling.
Open-Source Platform
Transparent Engineering, Distributed Improvement
All design documentation will be freely published and downloadable — without copyright restriction. The platform enables collaborative design improvement at global scale.
Mechanical Design
Complete fabrication drawings
Scrubber Calculations
Chamber sizing & contact zone design
Airflow & Blower
Flow rate, blower sizing, pressure drop
Bill of Materials
Complete component list with vendor ecosystem
Unit Cost & Scale-Up
Economics from single unit to batch production
Maintenance Schedule
Preventive maintenance and service intervals
Guiding Principles
Sustainability Principles
This initiative is structured around three non-negotiable principles that govern design decisions, distribution, and financial accountability.
1
Respect the Dignity of Workers
Workers have purchasing capacity. If adoption fails, the response is to redesign the system — not to question the worker.
2
Do Not Give Anything for Free
Free distribution erodes accountability and perceived value. Sustainability requires economic participation from every stakeholder.
3
Social Impact Must Coexist with Economic Clarity
Engineering must remain financially structured. Compassion without accounting is not a system — it is a sentiment.
Financial Model
Financial Flow Model
A structured model that preserves worker dignity, supports an established NGO, and keeps engineering open-source — with the founder absorbing the manufacturing cost.
Founder
Absorbs manufacturing cost. Delivers product to worker.
Worker
Receives product. Deposits equivalent value to NGO.
NGO
Receives donation. Net financial movement: Founder → NGO.
Documentation
Proof of Concept & Engineering Documentation
The platform will host complete engineering documentation — from prototype visuals to production-ready cost sheets — enabling independent verification and local replication.
01
Prototype Visuals
Fabrication photographs and assembly documentation.
02
Airflow Diagrams
Schematic flow paths through scrubber and delivery system.
03
Mass Balance Calculations
Particulate capture efficiency and water consumption rates.
04
Cost Breakdown Sheets
Component-level costing for unit and batch manufacturing.
05
Scale-Up Economics
Production economics from 10 to 10,000 units.
Collaboration
Join the Open-Source Engineering Platform
This initiative is designed for distributed contribution. We invite domain specialists, fabricators, and organisations aligned with transparent, accountable engineering for worker safety.
Mechanical Engineers
Refine scrubber geometry, structural design, and fabrication drawings.
Fluid Dynamics Specialists
Optimise contact zone turbulence and particulate capture efficiency.
Pulmonologists
Validate respiratory protection parameters against clinical exposure thresholds.
Fabricators & Manufacturers
Scale production with local tooling. Test build-readiness of published designs.
Industrial Designers
Improve ergonomics, wearability, and field-condition usability.
NGOs & Field Organisations
Facilitate field trials, community engagement, and adoption feedback loops.
Engineering must be transparent.
Design must be accountable.
Impact must be measurable.
Engineering for Dignity — An open-source initiative. All documentation freely published. No copyright restriction.